diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d5ea7bdc07..e9bdacc6811 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -724,6 +724,17 @@ add_library(gpr
   src/core/lib/support/wrap_memcpy.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(gpr PROPERTIES COMPILE_PDB_NAME "gpr"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/gpr.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(gpr
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -804,6 +815,17 @@ add_library(gpr_test_util
   test/core/util/test_config.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(gpr_test_util PROPERTIES COMPILE_PDB_NAME "gpr_test_util"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/gpr_test_util.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(gpr_test_util
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -1057,6 +1079,17 @@ add_library(grpc
   src/core/plugin_registry/grpc_plugin_registry.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc PROPERTIES COMPILE_PDB_NAME "grpc"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -1327,6 +1360,17 @@ add_library(grpc_cronet
   src/core/plugin_registry/grpc_cronet_plugin_registry.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc_cronet PROPERTIES COMPILE_PDB_NAME "grpc_cronet"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_cronet.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc_cronet
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -1540,6 +1584,17 @@ add_library(grpc_test_util
   src/core/lib/transport/transport_op_string.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc_test_util PROPERTIES COMPILE_PDB_NAME "grpc_test_util"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_test_util.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc_test_util
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -1620,6 +1675,17 @@ add_library(grpc_test_util_unsecure
   test/core/util/slice_splitter.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc_test_util_unsecure PROPERTIES COMPILE_PDB_NAME "grpc_test_util_unsecure"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_test_util_unsecure.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc_test_util_unsecure
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -1847,6 +1913,17 @@ add_library(grpc_unsecure
   src/core/plugin_registry/grpc_unsecure_plugin_registry.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc_unsecure PROPERTIES COMPILE_PDB_NAME "grpc_unsecure"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_unsecure.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc_unsecure
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -1920,6 +1997,17 @@ add_library(reconnect_server
   test/core/util/reconnect_server.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(reconnect_server PROPERTIES COMPILE_PDB_NAME "reconnect_server"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/reconnect_server.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(reconnect_server
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -1951,6 +2039,17 @@ add_library(test_tcp_server
   test/core/util/test_tcp_server.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(test_tcp_server PROPERTIES COMPILE_PDB_NAME "test_tcp_server"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/test_tcp_server.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(test_tcp_server
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -2016,6 +2115,17 @@ add_library(grpc++
   src/cpp/codegen/codegen_init.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++ PROPERTIES COMPILE_PDB_NAME "grpc++"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc++
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -2368,6 +2478,17 @@ add_library(grpc++_cronet
   third_party/nanopb/pb_encode.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++_cronet PROPERTIES COMPILE_PDB_NAME "grpc++_cronet"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++_cronet.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc++_cronet
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -2521,6 +2642,17 @@ add_library(grpc++_proto_reflection_desc_db
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.h
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++_proto_reflection_desc_db PROPERTIES COMPILE_PDB_NAME "grpc++_proto_reflection_desc_db"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++_proto_reflection_desc_db.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/reflection/v1alpha/reflection.proto
 )
@@ -2568,6 +2700,17 @@ add_library(grpc++_reflection
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.h
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++_reflection PROPERTIES COMPILE_PDB_NAME "grpc++_reflection"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++_reflection.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/reflection/v1alpha/reflection.proto
 )
@@ -2617,6 +2760,17 @@ add_library(grpc++_test
   src/cpp/test/server_context_test_spouse.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++_test PROPERTIES COMPILE_PDB_NAME "grpc++_test"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++_test.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc++_test
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -2648,6 +2802,17 @@ add_library(grpc++_test_config
   test/cpp/util/test_config_cc.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++_test_config PROPERTIES COMPILE_PDB_NAME "grpc++_test_config"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++_test_config.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc++_test_config
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -2696,6 +2861,17 @@ add_library(grpc++_test_util
   src/cpp/codegen/codegen_init.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++_test_util PROPERTIES COMPILE_PDB_NAME "grpc++_test_util"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++_test_util.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/testing/echo_messages.proto
 )
@@ -2828,6 +3004,17 @@ add_library(grpc++_unsecure
   src/cpp/codegen/codegen_init.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc++_unsecure PROPERTIES COMPILE_PDB_NAME "grpc++_unsecure"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc++_unsecure.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc++_unsecure
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -2974,6 +3161,17 @@ add_library(grpc_cli_libs
   ${_gRPC_PROTO_GENS_DIR}/src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.h
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc_cli_libs PROPERTIES COMPILE_PDB_NAME "grpc_cli_libs"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_cli_libs.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/reflection/v1alpha/reflection.proto
 )
@@ -3023,6 +3221,17 @@ add_library(grpc_plugin_support
   src/compiler/ruby_generator.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc_plugin_support PROPERTIES COMPILE_PDB_NAME "grpc_plugin_support"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_plugin_support.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc_plugin_support
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -3081,6 +3290,17 @@ add_library(http2_client_main
   test/cpp/interop/http2_client.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(http2_client_main PROPERTIES COMPILE_PDB_NAME "http2_client_main"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/http2_client_main.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/testing/empty.proto
 )
@@ -3129,6 +3349,17 @@ add_library(interop_client_helper
   test/cpp/interop/client_helper.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(interop_client_helper PROPERTIES COMPILE_PDB_NAME "interop_client_helper"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/interop_client_helper.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/testing/messages.proto
 )
@@ -3180,6 +3411,17 @@ add_library(interop_client_main
   test/cpp/interop/interop_client.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(interop_client_main PROPERTIES COMPILE_PDB_NAME "interop_client_main"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/interop_client_main.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/testing/empty.proto
 )
@@ -3227,6 +3469,17 @@ add_library(interop_server_helper
   test/cpp/interop/server_helper.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(interop_server_helper PROPERTIES COMPILE_PDB_NAME "interop_server_helper"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/interop_server_helper.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(interop_server_helper
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -3274,6 +3527,17 @@ add_library(interop_server_lib
   test/cpp/interop/interop_server.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(interop_server_lib PROPERTIES COMPILE_PDB_NAME "interop_server_lib"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/interop_server_lib.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/testing/empty.proto
 )
@@ -3321,6 +3585,17 @@ add_library(interop_server_main
   test/cpp/interop/interop_server_bootstrap.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(interop_server_main PROPERTIES COMPILE_PDB_NAME "interop_server_main"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/interop_server_main.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(interop_server_main
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -3381,6 +3656,17 @@ add_library(qps
   test/cpp/util/benchmark_config.cc
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(qps PROPERTIES COMPILE_PDB_NAME "qps"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/qps.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 protobuf_generate_grpc_cpp(
   src/proto/grpc/testing/messages.proto
 )
@@ -3428,6 +3714,17 @@ add_library(grpc_csharp_ext SHARED
   src/csharp/ext/grpc_csharp_ext.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(grpc_csharp_ext PROPERTIES COMPILE_PDB_NAME "grpc_csharp_ext"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/grpc_csharp_ext.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(grpc_csharp_ext
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -3539,6 +3836,17 @@ add_library(bad_client_test
   test/core/bad_client/bad_client.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(bad_client_test PROPERTIES COMPILE_PDB_NAME "bad_client_test"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/bad_client_test.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(bad_client_test
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -3569,6 +3877,17 @@ add_library(bad_ssl_test_server
   test/core/bad_ssl/server_common.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(bad_ssl_test_server PROPERTIES COMPILE_PDB_NAME "bad_ssl_test_server"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/bad_ssl_test_server.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(bad_ssl_test_server
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -3649,6 +3968,17 @@ add_library(end2end_tests
   test/core/end2end/tests/write_buffering_at_end.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(end2end_tests PROPERTIES COMPILE_PDB_NAME "end2end_tests"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/end2end_tests.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(end2end_tests
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
@@ -3729,6 +4059,17 @@ add_library(end2end_nosec_tests
   test/core/end2end/tests/write_buffering_at_end.c
 )
 
+if(WIN32 AND MSVC)
+  set_target_properties(end2end_nosec_tests PROPERTIES COMPILE_PDB_NAME "end2end_nosec_tests"
+    COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+  )
+  if (gRPC_INSTALL)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/end2end_nosec_tests.pdb
+      DESTINATION ${CMAKE_INSTALL_LIBDIR} OPTIONAL
+    )
+  endif()
+endif()
+
 
 target_include_directories(end2end_nosec_tests
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
diff --git a/include/grpc/impl/codegen/grpc_types.h b/include/grpc/impl/codegen/grpc_types.h
index bc0b2bd7f86..6661547f6b6 100644
--- a/include/grpc/impl/codegen/grpc_types.h
+++ b/include/grpc/impl/codegen/grpc_types.h
@@ -222,6 +222,8 @@ typedef struct {
 /** If non-zero, a pointer to a buffer pool (use grpc_resource_quota_arg_vtable
    to fetch an appropriate pointer arg vtable) */
 #define GRPC_ARG_RESOURCE_QUOTA "grpc.resource_quota"
+/** If non-zero, expand wildcard addresses to a list of local addresses. */
+#define GRPC_ARG_EXPAND_WILDCARD_ADDRS "grpc.expand_wildcard_addrs"
 /** Service config data in JSON form. Not intended for use outside of tests. */
 #define GRPC_ARG_SERVICE_CONFIG "grpc.service_config"
 /** LB policy name. */
diff --git a/src/core/ext/client_channel/client_channel.c b/src/core/ext/client_channel/client_channel.c
index 4ab467329a6..06038bb5ba9 100644
--- a/src/core/ext/client_channel/client_channel.c
+++ b/src/core/ext/client_channel/client_channel.c
@@ -44,8 +44,8 @@
 #include <grpc/support/useful.h>
 
 #include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/http_proxy.h"
 #include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/client_channel/proxy_mapper_registry.h"
 #include "src/core/ext/client_channel/resolver_registry.h"
 #include "src/core/ext/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
@@ -153,10 +153,6 @@ static void *method_parameters_create_from_json(const grpc_json *json) {
  */
 
 typedef struct client_channel_channel_data {
-  /** server name */
-  char *server_name;
-  /** HTTP CONNECT proxy to use, if any */
-  char *proxy_name;
   /** resolver for this channel */
   grpc_resolver *resolver;
   /** have we started resolving this channel */
@@ -317,17 +313,6 @@ static void on_resolver_result_changed(grpc_exec_ctx *exec_ctx, void *arg,
     // Use pick_first if nothing was specified and we didn't select grpclb
     // above.
     if (lb_policy_name == NULL) lb_policy_name = "pick_first";
-    // If using a proxy, add channel arg for server in HTTP CONNECT request.
-    if (chand->proxy_name != NULL) {
-      grpc_arg new_arg;
-      new_arg.key = GRPC_ARG_HTTP_CONNECT_SERVER;
-      new_arg.type = GRPC_ARG_STRING;
-      new_arg.value.string = chand->server_name;
-      grpc_channel_args *tmp_args = chand->resolver_result;
-      chand->resolver_result =
-          grpc_channel_args_copy_and_add(chand->resolver_result, &new_arg, 1);
-      grpc_channel_args_destroy(exec_ctx, tmp_args);
-    }
     // Instantiate LB policy.
     grpc_lb_policy_args lb_policy_args;
     lb_policy_args.args = chand->resolver_result;
@@ -542,24 +527,21 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx,
   GPR_ASSERT(arg->type == GRPC_ARG_POINTER);
   grpc_client_channel_factory_ref(arg->value.pointer.p);
   chand->client_channel_factory = arg->value.pointer.p;
-  // Instantiate resolver.
+  // Get server name to resolve, using proxy mapper if needed.
   arg = grpc_channel_args_find(args->channel_args, GRPC_ARG_SERVER_URI);
   GPR_ASSERT(arg != NULL);
   GPR_ASSERT(arg->type == GRPC_ARG_STRING);
-  grpc_uri *uri = grpc_uri_parse(arg->value.string, true);
-  if (uri == NULL) return GRPC_ERROR_CREATE("cannot parse server URI");
-  if (uri->path[0] == '\0') {
-    grpc_uri_destroy(uri);
-    return GRPC_ERROR_CREATE("server URI is missing path");
-  }
-  chand->server_name =
-      gpr_strdup(uri->path[0] == '/' ? uri->path + 1 : uri->path);
-  grpc_uri_destroy(uri);
-  chand->proxy_name = grpc_get_http_proxy_server();
-  char *name_to_resolve =
-      chand->proxy_name == NULL ? arg->value.string : chand->proxy_name;
+  char *proxy_name = NULL;
+  grpc_channel_args *new_args = NULL;
+  grpc_proxy_mappers_map_name(exec_ctx, arg->value.string, args->channel_args,
+                              &proxy_name, &new_args);
+  // Instantiate resolver.
   chand->resolver = grpc_resolver_create(
-      exec_ctx, name_to_resolve, args->channel_args, chand->interested_parties);
+      exec_ctx, proxy_name != NULL ? proxy_name : arg->value.string,
+      new_args != NULL ? new_args : args->channel_args,
+      chand->interested_parties);
+  if (proxy_name != NULL) gpr_free(proxy_name);
+  if (new_args != NULL) grpc_channel_args_destroy(exec_ctx, new_args);
   if (chand->resolver == NULL) {
     return GRPC_ERROR_CREATE("resolver creation failed");
   }
@@ -570,8 +552,6 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx,
 static void cc_destroy_channel_elem(grpc_exec_ctx *exec_ctx,
                                     grpc_channel_element *elem) {
   channel_data *chand = elem->channel_data;
-  gpr_free(chand->server_name);
-  gpr_free(chand->proxy_name);
   if (chand->resolver != NULL) {
     grpc_resolver_shutdown(exec_ctx, chand->resolver);
     GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel");
diff --git a/src/core/ext/client_channel/client_channel_plugin.c b/src/core/ext/client_channel/client_channel_plugin.c
index 7f75233727e..6f9df3e386e 100644
--- a/src/core/ext/client_channel/client_channel_plugin.c
+++ b/src/core/ext/client_channel/client_channel_plugin.c
@@ -39,6 +39,7 @@
 
 #include "src/core/ext/client_channel/client_channel.h"
 #include "src/core/ext/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/client_channel/http_proxy.h"
 #include "src/core/ext/client_channel/lb_policy_registry.h"
 #include "src/core/ext/client_channel/proxy_mapper_registry.h"
 #include "src/core/ext/client_channel/resolver_registry.h"
@@ -82,6 +83,7 @@ void grpc_client_channel_init(void) {
   grpc_lb_policy_registry_init();
   grpc_resolver_registry_init();
   grpc_proxy_mapper_registry_init();
+  grpc_register_http_proxy_mapper();
   grpc_subchannel_index_init();
   grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MIN,
                                    set_default_host_if_unset, NULL);
diff --git a/src/core/ext/client_channel/http_proxy.c b/src/core/ext/client_channel/http_proxy.c
index 9a6c818c4ee..bbe4ff550c6 100644
--- a/src/core/ext/client_channel/http_proxy.c
+++ b/src/core/ext/client_channel/http_proxy.c
@@ -40,10 +40,13 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
+#include "src/core/ext/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/client_channel/proxy_mapper_registry.h"
 #include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/support/env.h"
 
-char* grpc_get_http_proxy_server() {
+static char* grpc_get_http_proxy_server() {
   char* uri_str = gpr_getenv("http_proxy");
   if (uri_str == NULL) return NULL;
   grpc_uri* uri = grpc_uri_parse(uri_str, false /* suppress_errors */);
@@ -66,3 +69,55 @@ done:
   grpc_uri_destroy(uri);
   return proxy_name;
 }
+
+static bool proxy_mapper_map_name(grpc_exec_ctx* exec_ctx,
+                                  grpc_proxy_mapper* mapper,
+                                  const char* server_uri,
+                                  const grpc_channel_args* args,
+                                  char** name_to_resolve,
+                                  grpc_channel_args** new_args) {
+  *name_to_resolve = grpc_get_http_proxy_server();
+  if (*name_to_resolve == NULL) return false;
+  grpc_uri* uri = grpc_uri_parse(server_uri, false /* suppress_errors */);
+  if (uri == NULL || uri->path[0] == '\0') {
+    gpr_log(GPR_ERROR,
+            "'http_proxy' environment variable set, but cannot "
+            "parse server URI '%s' -- not using proxy",
+            server_uri);
+    if (uri != NULL) grpc_uri_destroy(uri);
+    return false;
+  }
+  if (strcmp(uri->scheme, "unix") == 0) {
+    gpr_log(GPR_INFO, "not using proxy for Unix domain socket '%s'",
+            server_uri);
+    grpc_uri_destroy(uri);
+    return false;
+  }
+  grpc_arg new_arg;
+  new_arg.key = GRPC_ARG_HTTP_CONNECT_SERVER;
+  new_arg.type = GRPC_ARG_STRING;
+  new_arg.value.string = uri->path[0] == '/' ? uri->path + 1 : uri->path;
+  *new_args = grpc_channel_args_copy_and_add(args, &new_arg, 1);
+  grpc_uri_destroy(uri);
+  return true;
+}
+
+static bool proxy_mapper_map_address(grpc_exec_ctx* exec_ctx,
+                                     grpc_proxy_mapper* mapper,
+                                     const grpc_resolved_address* address,
+                                     const grpc_channel_args* args,
+                                     grpc_resolved_address** new_address,
+                                     grpc_channel_args** new_args) {
+  return false;
+}
+
+static void proxy_mapper_destroy(grpc_proxy_mapper* mapper) {}
+
+static const grpc_proxy_mapper_vtable proxy_mapper_vtable = {
+    proxy_mapper_map_name, proxy_mapper_map_address, proxy_mapper_destroy};
+
+static grpc_proxy_mapper proxy_mapper = {&proxy_mapper_vtable};
+
+void grpc_register_http_proxy_mapper() {
+  grpc_proxy_mapper_register(true /* at_start */, &proxy_mapper);
+}
diff --git a/src/core/ext/client_channel/http_proxy.h b/src/core/ext/client_channel/http_proxy.h
index 0d77ae253b0..c8882b1ef18 100644
--- a/src/core/ext/client_channel/http_proxy.h
+++ b/src/core/ext/client_channel/http_proxy.h
@@ -34,8 +34,6 @@
 #ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
 #define GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
 
-/// Returns the name of the proxy to use, or NULL if no proxy is configured.
-/// Caller takes ownership of result.
-char* grpc_get_http_proxy_server();
+void grpc_register_http_proxy_mapper();
 
 #endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H */
diff --git a/src/core/ext/client_channel/proxy_mapper.c b/src/core/ext/client_channel/proxy_mapper.c
index 6b6f328d3ce..f92afe847bf 100644
--- a/src/core/ext/client_channel/proxy_mapper.c
+++ b/src/core/ext/client_channel/proxy_mapper.c
@@ -38,13 +38,24 @@ void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable,
   mapper->vtable = vtable;
 }
 
-bool grpc_proxy_mapper_map(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
-                           const grpc_resolved_address* address,
-                           const grpc_channel_args* args,
-                           grpc_resolved_address** new_address,
-                           grpc_channel_args** new_args) {
-  return mapper->vtable->map(exec_ctx, mapper, address, args, new_address,
-                             new_args);
+bool grpc_proxy_mapper_map_name(grpc_exec_ctx* exec_ctx,
+                                grpc_proxy_mapper* mapper,
+                                const char* server_uri,
+                                const grpc_channel_args* args,
+                                char** name_to_resolve,
+                                grpc_channel_args** new_args) {
+  return mapper->vtable->map_name(exec_ctx, mapper, server_uri, args,
+                                  name_to_resolve, new_args);
+}
+
+bool grpc_proxy_mapper_map_address(grpc_exec_ctx* exec_ctx,
+                                   grpc_proxy_mapper* mapper,
+                                   const grpc_resolved_address* address,
+                                   const grpc_channel_args* args,
+                                   grpc_resolved_address** new_address,
+                                   grpc_channel_args** new_args) {
+  return mapper->vtable->map_address(exec_ctx, mapper, address, args,
+                                     new_address, new_args);
 }
 
 void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper) {
diff --git a/src/core/ext/client_channel/proxy_mapper.h b/src/core/ext/client_channel/proxy_mapper.h
index fa930379e70..6e4607fe4d9 100644
--- a/src/core/ext/client_channel/proxy_mapper.h
+++ b/src/core/ext/client_channel/proxy_mapper.h
@@ -43,15 +43,22 @@
 typedef struct grpc_proxy_mapper grpc_proxy_mapper;
 
 typedef struct {
+  /// Determines the proxy name to resolve for \a server_uri.
+  /// If no proxy is needed, returns false.
+  /// Otherwise, sets \a name_to_resolve, optionally sets \a new_args,
+  /// and returns true.
+  bool (*map_name)(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
+                   const char* server_uri, const grpc_channel_args* args,
+                   char** name_to_resolve, grpc_channel_args** new_args);
   /// Determines the proxy address to use to contact \a address.
   /// If no proxy is needed, returns false.
   /// Otherwise, sets \a new_address, optionally sets \a new_args, and
   /// returns true.
-  bool (*map)(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
-              const grpc_resolved_address* address,
-              const grpc_channel_args* args,
-              grpc_resolved_address** new_address,
-              grpc_channel_args** new_args);
+  bool (*map_address)(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
+                      const grpc_resolved_address* address,
+                      const grpc_channel_args* args,
+                      grpc_resolved_address** new_address,
+                      grpc_channel_args** new_args);
   /// Destroys \a mapper.
   void (*destroy)(grpc_proxy_mapper* mapper);
 } grpc_proxy_mapper_vtable;
@@ -63,11 +70,20 @@ struct grpc_proxy_mapper {
 void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable,
                             grpc_proxy_mapper* mapper);
 
-bool grpc_proxy_mapper_map(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
-                           const grpc_resolved_address* address,
-                           const grpc_channel_args* args,
-                           grpc_resolved_address** new_address,
-                           grpc_channel_args** new_args);
+bool grpc_proxy_mapper_map_name(grpc_exec_ctx* exec_ctx,
+                                grpc_proxy_mapper* mapper,
+                                const char* server_uri,
+                                const grpc_channel_args* args,
+                                char** name_to_resolve,
+                                grpc_channel_args** new_args);
+
+bool grpc_proxy_mapper_map_address(grpc_exec_ctx* exec_ctx,
+                                   grpc_proxy_mapper* mapper,
+                                   const grpc_resolved_address* address,
+                                   const grpc_channel_args* args,
+                                   grpc_resolved_address** new_address,
+                                   grpc_channel_args** new_args);
+
 void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper);
 
 #endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H */
diff --git a/src/core/ext/client_channel/proxy_mapper_registry.c b/src/core/ext/client_channel/proxy_mapper_registry.c
index 0a156c8b1c1..2c44b9d4903 100644
--- a/src/core/ext/client_channel/proxy_mapper_registry.c
+++ b/src/core/ext/client_channel/proxy_mapper_registry.c
@@ -61,15 +61,28 @@ static void grpc_proxy_mapper_list_register(grpc_proxy_mapper_list* list,
   ++list->num_mappers;
 }
 
-static bool grpc_proxy_mapper_list_map(grpc_exec_ctx* exec_ctx,
-                                       grpc_proxy_mapper_list* list,
-                                       const grpc_resolved_address* address,
-                                       const grpc_channel_args* args,
-                                       grpc_resolved_address** new_address,
-                                       grpc_channel_args** new_args) {
+static bool grpc_proxy_mapper_list_map_name(grpc_exec_ctx* exec_ctx,
+                                            grpc_proxy_mapper_list* list,
+                                            const char* server_uri,
+                                            const grpc_channel_args* args,
+                                            char** name_to_resolve,
+                                            grpc_channel_args** new_args) {
   for (size_t i = 0; i < list->num_mappers; ++i) {
-    if (grpc_proxy_mapper_map(exec_ctx, list->list[i], address, args,
-                              new_address, new_args)) {
+    if (grpc_proxy_mapper_map_name(exec_ctx, list->list[i], server_uri, args,
+                                   name_to_resolve, new_args)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+static bool grpc_proxy_mapper_list_map_address(
+    grpc_exec_ctx* exec_ctx, grpc_proxy_mapper_list* list,
+    const grpc_resolved_address* address, const grpc_channel_args* args,
+    grpc_resolved_address** new_address, grpc_channel_args** new_args) {
+  for (size_t i = 0; i < list->num_mappers; ++i) {
+    if (grpc_proxy_mapper_map_address(exec_ctx, list->list[i], address, args,
+                                      new_address, new_args)) {
       return true;
     }
   }
@@ -101,11 +114,20 @@ void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper) {
   grpc_proxy_mapper_list_register(&g_proxy_mapper_list, at_start, mapper);
 }
 
-bool grpc_proxy_mappers_map(grpc_exec_ctx* exec_ctx,
-                            const grpc_resolved_address* address,
-                            const grpc_channel_args* args,
-                            grpc_resolved_address** new_address,
-                            grpc_channel_args** new_args) {
-  return grpc_proxy_mapper_list_map(exec_ctx, &g_proxy_mapper_list, address,
-                                    args, new_address, new_args);
+bool grpc_proxy_mappers_map_name(grpc_exec_ctx* exec_ctx,
+                                 const char* server_uri,
+                                 const grpc_channel_args* args,
+                                 char** name_to_resolve,
+                                 grpc_channel_args** new_args) {
+  return grpc_proxy_mapper_list_map_name(exec_ctx, &g_proxy_mapper_list,
+                                         server_uri, args, name_to_resolve,
+                                         new_args);
+}
+bool grpc_proxy_mappers_map_address(grpc_exec_ctx* exec_ctx,
+                                    const grpc_resolved_address* address,
+                                    const grpc_channel_args* args,
+                                    grpc_resolved_address** new_address,
+                                    grpc_channel_args** new_args) {
+  return grpc_proxy_mapper_list_map_address(
+      exec_ctx, &g_proxy_mapper_list, address, args, new_address, new_args);
 }
diff --git a/src/core/ext/client_channel/proxy_mapper_registry.h b/src/core/ext/client_channel/proxy_mapper_registry.h
index b76af8d4564..742b57a2d49 100644
--- a/src/core/ext/client_channel/proxy_mapper_registry.h
+++ b/src/core/ext/client_channel/proxy_mapper_registry.h
@@ -44,10 +44,16 @@ void grpc_proxy_mapper_registry_shutdown();
 /// the list.  Otherwise, it will be added to the end.
 void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper);
 
-bool grpc_proxy_mappers_map(grpc_exec_ctx* exec_ctx,
-                            const grpc_resolved_address* address,
-                            const grpc_channel_args* args,
-                            grpc_resolved_address** new_address,
-                            grpc_channel_args** new_args);
+bool grpc_proxy_mappers_map_name(grpc_exec_ctx* exec_ctx,
+                                 const char* server_uri,
+                                 const grpc_channel_args* args,
+                                 char** name_to_resolve,
+                                 grpc_channel_args** new_args);
+
+bool grpc_proxy_mappers_map_address(grpc_exec_ctx* exec_ctx,
+                                    const grpc_resolved_address* address,
+                                    const grpc_channel_args* args,
+                                    grpc_resolved_address** new_address,
+                                    grpc_channel_args** new_args);
 
 #endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */
diff --git a/src/core/ext/client_channel/subchannel.c b/src/core/ext/client_channel/subchannel.c
index abbbfdfd644..aa036e883ba 100644
--- a/src/core/ext/client_channel/subchannel.c
+++ b/src/core/ext/client_channel/subchannel.c
@@ -336,8 +336,8 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx,
   grpc_set_initial_connect_string(&addr, &c->initial_connect_string);
   grpc_resolved_address *new_address = NULL;
   grpc_channel_args *new_args = NULL;
-  if (grpc_proxy_mappers_map(exec_ctx, addr, args->args, &new_address,
-                             &new_args)) {
+  if (grpc_proxy_mappers_map_address(exec_ctx, addr, args->args, &new_address,
+                                     &new_args)) {
     GPR_ASSERT(new_address != NULL);
     gpr_free(addr);
     addr = new_address;
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
index 8a9eaa8b6a2..3ee5e976f84 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
@@ -168,7 +168,7 @@ static void destruct_transport(grpc_exec_ctx *exec_ctx,
   grpc_chttp2_stream_map_destroy(&t->stream_map);
   grpc_connectivity_state_destroy(exec_ctx, &t->channel_callback.state_tracker);
 
-  grpc_combiner_destroy(exec_ctx, t->combiner);
+  GRPC_COMBINER_UNREF(exec_ctx, t->combiner, "chttp2_transport");
 
   cancel_pings(exec_ctx, t, GRPC_ERROR_CREATE("Transport destroyed"));
 
diff --git a/src/core/lib/iomgr/combiner.c b/src/core/lib/iomgr/combiner.c
index ba6c7087a92..fa9966c3a69 100644
--- a/src/core/lib/iomgr/combiner.c
+++ b/src/core/lib/iomgr/combiner.c
@@ -72,6 +72,7 @@ struct grpc_combiner {
   bool final_list_covered_by_poller;
   grpc_closure_list final_list;
   grpc_closure offload;
+  gpr_refcount refs;
 };
 
 static void combiner_exec_uncovered(grpc_exec_ctx *exec_ctx,
@@ -126,6 +127,7 @@ static bool is_covered_by_poller(grpc_combiner *lock) {
 
 grpc_combiner *grpc_combiner_create(grpc_workqueue *optional_workqueue) {
   grpc_combiner *lock = gpr_malloc(sizeof(*lock));
+  gpr_ref_init(&lock->refs, 1);
   lock->next_combiner_on_this_exec_ctx = NULL;
   lock->time_to_execute_final_list = false;
   lock->optional_workqueue = optional_workqueue;
@@ -152,7 +154,7 @@ static void really_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) {
   gpr_free(lock);
 }
 
-void grpc_combiner_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) {
+static void start_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) {
   gpr_atm old_state = gpr_atm_full_fetch_add(&lock->state, -STATE_UNORPHANED);
   GRPC_COMBINER_TRACE(gpr_log(
       GPR_DEBUG, "C:%p really_destroy old_state=%" PRIdPTR, lock, old_state));
@@ -161,6 +163,30 @@ void grpc_combiner_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) {
   }
 }
 
+#ifdef GRPC_COMBINER_REFCOUNT_DEBUG
+#define GRPC_COMBINER_DEBUG_SPAM(op, delta)                               \
+  gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG,                             \
+          "combiner[%p] %s %" PRIdPTR " --> %" PRIdPTR " %s", lock, (op), \
+          gpr_atm_no_barrier_load(&lock->refs.count),                     \
+          gpr_atm_no_barrier_load(&lock->refs.count) + (delta), reason);
+#else
+#define GRPC_COMBINER_DEBUG_SPAM(op, delta)
+#endif
+
+void grpc_combiner_unref(grpc_exec_ctx *exec_ctx,
+                         grpc_combiner *lock GRPC_COMBINER_DEBUG_ARGS) {
+  GRPC_COMBINER_DEBUG_SPAM("UNREF", -1);
+  if (gpr_unref(&lock->refs)) {
+    start_destroy(exec_ctx, lock);
+  }
+}
+
+grpc_combiner *grpc_combiner_ref(grpc_combiner *lock GRPC_COMBINER_DEBUG_ARGS) {
+  GRPC_COMBINER_DEBUG_SPAM("  REF", 1);
+  gpr_ref(&lock->refs);
+  return lock;
+}
+
 static void push_last_on_exec_ctx(grpc_exec_ctx *exec_ctx,
                                   grpc_combiner *lock) {
   lock->next_combiner_on_this_exec_ctx = NULL;
diff --git a/src/core/lib/iomgr/combiner.h b/src/core/lib/iomgr/combiner.h
index 81dff85d402..75dcb0b70a4 100644
--- a/src/core/lib/iomgr/combiner.h
+++ b/src/core/lib/iomgr/combiner.h
@@ -48,8 +48,27 @@
 // Initialize the lock, with an optional workqueue to shift load to when
 // necessary
 grpc_combiner *grpc_combiner_create(grpc_workqueue *optional_workqueue);
-// Destroy the lock
-void grpc_combiner_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock);
+
+//#define GRPC_COMBINER_REFCOUNT_DEBUG
+#ifdef GRPC_COMBINER_REFCOUNT_DEBUG
+#define GRPC_COMBINER_DEBUG_ARGS \
+  , const char *file, int line, const char *reason
+#define GRPC_COMBINER_REF(combiner, reason) \
+  grpc_combiner_ref((combiner), __FILE__, __LINE__, (reason))
+#define GRPC_COMBINER_UNREF(exec_ctx, combiner, reason) \
+  grpc_combiner_unref((exec_ctx), (combiner), __FILE__, __LINE__, (reason))
+#else
+#define GRPC_COMBINER_DEBUG_ARGS
+#define GRPC_COMBINER_REF(combiner, reason) grpc_combiner_ref((combiner))
+#define GRPC_COMBINER_UNREF(exec_ctx, combiner, reason) \
+  grpc_combiner_unref((exec_ctx), (combiner))
+#endif
+
+// Ref/unref the lock, for when we're sharing the lock ownership
+// Prefer to use the macros above
+grpc_combiner *grpc_combiner_ref(grpc_combiner *lock GRPC_COMBINER_DEBUG_ARGS);
+void grpc_combiner_unref(grpc_exec_ctx *exec_ctx,
+                         grpc_combiner *lock GRPC_COMBINER_DEBUG_ARGS);
 // Fetch a scheduler to schedule closures against
 grpc_closure_scheduler *grpc_combiner_scheduler(grpc_combiner *lock,
                                                 bool covered_by_poller);
diff --git a/src/core/lib/iomgr/resource_quota.c b/src/core/lib/iomgr/resource_quota.c
index 2cc979467f6..511ffdcdf13 100644
--- a/src/core/lib/iomgr/resource_quota.c
+++ b/src/core/lib/iomgr/resource_quota.c
@@ -599,7 +599,7 @@ grpc_resource_quota *grpc_resource_quota_create(const char *name) {
 void grpc_resource_quota_unref_internal(grpc_exec_ctx *exec_ctx,
                                         grpc_resource_quota *resource_quota) {
   if (gpr_unref(&resource_quota->refs)) {
-    grpc_combiner_destroy(exec_ctx, resource_quota->combiner);
+    GRPC_COMBINER_UNREF(exec_ctx, resource_quota->combiner, "resource_quota");
     gpr_free(resource_quota->name);
     gpr_free(resource_quota);
   }
diff --git a/src/core/lib/iomgr/tcp_server_posix.c b/src/core/lib/iomgr/tcp_server_posix.c
index e9e7511c9cc..36f878fdd4d 100644
--- a/src/core/lib/iomgr/tcp_server_posix.c
+++ b/src/core/lib/iomgr/tcp_server_posix.c
@@ -44,6 +44,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <ifaddrs.h>
 #include <limits.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
@@ -115,6 +116,8 @@ struct grpc_tcp_server {
   bool shutdown;
   /* use SO_REUSEPORT */
   bool so_reuseport;
+  /* expand wildcard addresses to a list of all local addresses */
+  bool expand_wildcard_addrs;
 
   /* linked list of server ports */
   grpc_tcp_listener *head;
@@ -161,6 +164,7 @@ grpc_error *grpc_tcp_server_create(grpc_exec_ctx *exec_ctx,
   grpc_tcp_server *s = gpr_malloc(sizeof(grpc_tcp_server));
   s->so_reuseport = has_so_reuseport;
   s->resource_quota = grpc_resource_quota_create(NULL);
+  s->expand_wildcard_addrs = false;
   for (size_t i = 0; i < (args == NULL ? 0 : args->num_args); i++) {
     if (0 == strcmp(GRPC_ARG_ALLOW_REUSEPORT, args->args[i].key)) {
       if (args->args[i].type == GRPC_ARG_INTEGER) {
@@ -183,6 +187,15 @@ grpc_error *grpc_tcp_server_create(grpc_exec_ctx *exec_ctx,
         return GRPC_ERROR_CREATE(GRPC_ARG_RESOURCE_QUOTA
                                  " must be a pointer to a buffer pool");
       }
+    } else if (0 == strcmp(GRPC_ARG_EXPAND_WILDCARD_ADDRS, args->args[i].key)) {
+      if (args->args[i].type == GRPC_ARG_INTEGER) {
+        s->expand_wildcard_addrs = (args->args[i].value.integer != 0);
+      } else {
+        grpc_resource_quota_unref_internal(exec_ctx, s->resource_quota);
+        gpr_free(s);
+        return GRPC_ERROR_CREATE(GRPC_ARG_EXPAND_WILDCARD_ADDRS
+                                 " must be an integer");
+      }
     }
   }
   gpr_ref_init(&s->refs, 1);
@@ -504,9 +517,224 @@ static grpc_error *add_socket_to_server(grpc_tcp_server *s, int fd,
   return err;
 }
 
-/* Insert count new listeners after listener. Every new listener will have the
-   same listen address as listener (SO_REUSEPORT must be enabled). Every new
-   listener is a sibling of listener. */
+/* If successful, add a listener to s for addr, set *dsmode for the socket, and
+   return the *listener. */
+static grpc_error *add_addr_to_server(grpc_tcp_server *s,
+                                      const grpc_resolved_address *addr,
+                                      unsigned port_index, unsigned fd_index,
+                                      grpc_dualstack_mode *dsmode,
+                                      grpc_tcp_listener **listener) {
+  grpc_resolved_address addr4_copy;
+  int fd;
+  grpc_error *err =
+      grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, dsmode, &fd);
+  if (err != GRPC_ERROR_NONE) {
+    return err;
+  }
+  if (*dsmode == GRPC_DSMODE_IPV4 &&
+      grpc_sockaddr_is_v4mapped(addr, &addr4_copy)) {
+    addr = &addr4_copy;
+  }
+  return add_socket_to_server(s, fd, addr, port_index, fd_index, listener);
+}
+
+/* Bind to "::" to get a port number not used by any address. */
+static grpc_error *get_unused_port(int *port) {
+  grpc_resolved_address wild;
+  grpc_sockaddr_make_wildcard6(0, &wild);
+  grpc_dualstack_mode dsmode;
+  int fd;
+  grpc_error *err =
+      grpc_create_dualstack_socket(&wild, SOCK_STREAM, 0, &dsmode, &fd);
+  if (err != GRPC_ERROR_NONE) {
+    return err;
+  }
+  if (dsmode == GRPC_DSMODE_IPV4) {
+    grpc_sockaddr_make_wildcard4(0, &wild);
+  }
+  if (bind(fd, (const struct sockaddr *)wild.addr, (socklen_t)wild.len) != 0) {
+    err = GRPC_OS_ERROR(errno, "bind");
+    close(fd);
+    return err;
+  }
+  if (getsockname(fd, (struct sockaddr *)wild.addr, (socklen_t *)&wild.len) !=
+      0) {
+    err = GRPC_OS_ERROR(errno, "getsockname");
+    close(fd);
+    return err;
+  }
+  close(fd);
+  *port = grpc_sockaddr_get_port(&wild);
+  return *port <= 0 ? GRPC_ERROR_CREATE("Bad port") : GRPC_ERROR_NONE;
+}
+
+/* Return the listener in s with address addr or NULL. */
+static grpc_tcp_listener *find_listener_with_addr(grpc_tcp_server *s,
+                                                  grpc_resolved_address *addr) {
+  grpc_tcp_listener *l;
+  gpr_mu_lock(&s->mu);
+  for (l = s->head; l != NULL; l = l->next) {
+    if (l->addr.len != addr->len) {
+      continue;
+    }
+    if (memcmp(l->addr.addr, addr->addr, addr->len) == 0) {
+      break;
+    }
+  }
+  gpr_mu_unlock(&s->mu);
+  return l;
+}
+
+/* Get all addresses assigned to network interfaces on the machine and create a
+   listener for each. requested_port is the port to use for every listener, or 0
+   to select one random port that will be used for every listener. Set *out_port
+   to the port selected. Return GRPC_ERROR_NONE only if all listeners were
+   added. */
+static grpc_error *add_all_local_addrs_to_server(grpc_tcp_server *s,
+                                                 unsigned port_index,
+                                                 int requested_port,
+                                                 int *out_port) {
+  struct ifaddrs *ifa = NULL;
+  struct ifaddrs *ifa_it;
+  unsigned fd_index = 0;
+  grpc_tcp_listener *sp = NULL;
+  grpc_error *err = GRPC_ERROR_NONE;
+  if (requested_port == 0) {
+    /* Note: There could be a race where some local addrs can listen on the
+       selected port and some can't. The sane way to handle this would be to
+       retry by recreating the whole grpc_tcp_server. Backing out individual
+       listeners and orphaning the FDs looks like too much trouble. */
+    if ((err = get_unused_port(&requested_port)) != GRPC_ERROR_NONE) {
+      return err;
+    } else if (requested_port <= 0) {
+      return GRPC_ERROR_CREATE("Bad get_unused_port()");
+    }
+    gpr_log(GPR_DEBUG, "Picked unused port %d", requested_port);
+  }
+  if (getifaddrs(&ifa) != 0 || ifa == NULL) {
+    return GRPC_OS_ERROR(errno, "getifaddrs");
+  }
+  for (ifa_it = ifa; ifa_it != NULL; ifa_it = ifa_it->ifa_next) {
+    grpc_resolved_address addr;
+    char *addr_str = NULL;
+    grpc_dualstack_mode dsmode;
+    grpc_tcp_listener *new_sp = NULL;
+    const char *ifa_name = (ifa_it->ifa_name ? ifa_it->ifa_name : "<unknown>");
+    if (ifa_it->ifa_addr == NULL) {
+      continue;
+    } else if (ifa_it->ifa_addr->sa_family == AF_INET) {
+      addr.len = sizeof(struct sockaddr_in);
+    } else if (ifa_it->ifa_addr->sa_family == AF_INET6) {
+      addr.len = sizeof(struct sockaddr_in6);
+    } else {
+      continue;
+    }
+    memcpy(addr.addr, ifa_it->ifa_addr, addr.len);
+    if (!grpc_sockaddr_set_port(&addr, requested_port)) {
+      /* Should never happen, because we check sa_family above. */
+      err = GRPC_ERROR_CREATE("Failed to set port");
+      break;
+    }
+    if (grpc_sockaddr_to_string(&addr_str, &addr, 0) < 0) {
+      addr_str = gpr_strdup("<error>");
+    }
+    gpr_log(GPR_DEBUG,
+            "Adding local addr from interface %s flags 0x%x to server: %s",
+            ifa_name, ifa_it->ifa_flags, addr_str);
+    /* We could have multiple interfaces with the same address (e.g., bonding),
+       so look for duplicates. */
+    if (find_listener_with_addr(s, &addr) != NULL) {
+      gpr_log(GPR_DEBUG, "Skipping duplicate addr %s on interface %s", addr_str,
+              ifa_name);
+      gpr_free(addr_str);
+      continue;
+    }
+    if ((err = add_addr_to_server(s, &addr, port_index, fd_index, &dsmode,
+                                  &new_sp)) != GRPC_ERROR_NONE) {
+      char *err_str = NULL;
+      grpc_error *root_err;
+      if (gpr_asprintf(&err_str, "Failed to add listener: %s", addr_str) < 0) {
+        err_str = gpr_strdup("Failed to add listener");
+      }
+      root_err = GRPC_ERROR_CREATE(err_str);
+      gpr_free(err_str);
+      gpr_free(addr_str);
+      err = grpc_error_add_child(root_err, err);
+      break;
+    } else {
+      GPR_ASSERT(requested_port == new_sp->port);
+      ++fd_index;
+      if (sp != NULL) {
+        new_sp->is_sibling = 1;
+        sp->sibling = new_sp;
+      }
+      sp = new_sp;
+    }
+    gpr_free(addr_str);
+  }
+  freeifaddrs(ifa);
+  if (err != GRPC_ERROR_NONE) {
+    return err;
+  } else if (sp == NULL) {
+    return GRPC_ERROR_CREATE("No local addresses");
+  } else {
+    *out_port = sp->port;
+    return GRPC_ERROR_NONE;
+  }
+}
+
+/* Treat :: or 0.0.0.0 as a family-agnostic wildcard. */
+static grpc_error *add_wildcard_addrs_to_server(grpc_tcp_server *s,
+                                                unsigned port_index,
+                                                int requested_port,
+                                                int *out_port) {
+  grpc_resolved_address wild4;
+  grpc_resolved_address wild6;
+  unsigned fd_index = 0;
+  grpc_dualstack_mode dsmode;
+  grpc_tcp_listener *sp = NULL;
+  grpc_tcp_listener *sp2 = NULL;
+  grpc_error *v6_err = GRPC_ERROR_NONE;
+  grpc_error *v4_err = GRPC_ERROR_NONE;
+  *out_port = -1;
+  if (s->expand_wildcard_addrs) {
+    return add_all_local_addrs_to_server(s, port_index, requested_port,
+                                         out_port);
+  }
+  grpc_sockaddr_make_wildcards(requested_port, &wild4, &wild6);
+  /* Try listening on IPv6 first. */
+  if ((v6_err = add_addr_to_server(s, &wild6, port_index, fd_index, &dsmode,
+                                   &sp)) == GRPC_ERROR_NONE) {
+    ++fd_index;
+    requested_port = *out_port = sp->port;
+    if (dsmode == GRPC_DSMODE_DUALSTACK || dsmode == GRPC_DSMODE_IPV4) {
+      return GRPC_ERROR_NONE;
+    }
+  }
+  /* If we got a v6-only socket or nothing, try adding 0.0.0.0. */
+  grpc_sockaddr_set_port(&wild4, requested_port);
+  if ((v4_err = add_addr_to_server(s, &wild4, port_index, fd_index, &dsmode,
+                                   &sp2)) == GRPC_ERROR_NONE) {
+    *out_port = sp2->port;
+    if (sp != NULL) {
+      sp2->is_sibling = 1;
+      sp->sibling = sp2;
+    }
+  }
+  if (*out_port > 0) {
+    GRPC_LOG_IF_ERROR("Failed to add :: listener", v6_err);
+    GRPC_LOG_IF_ERROR("Failed to add 0.0.0.0 listener", v4_err);
+    return GRPC_ERROR_NONE;
+  } else {
+    grpc_error *root_err =
+        GRPC_ERROR_CREATE("Failed to add any wildcard listeners");
+    GPR_ASSERT(v6_err != GRPC_ERROR_NONE && v4_err != GRPC_ERROR_NONE);
+    root_err = grpc_error_add_child(root_err, v6_err);
+    root_err = grpc_error_add_child(root_err, v4_err);
+    return root_err;
+  }
+}
+
 static grpc_error *clone_port(grpc_tcp_listener *listener, unsigned count) {
   grpc_tcp_listener *sp = NULL;
   char *addr_str;
@@ -559,19 +787,13 @@ grpc_error *grpc_tcp_server_add_port(grpc_tcp_server *s,
                                      const grpc_resolved_address *addr,
                                      int *out_port) {
   grpc_tcp_listener *sp;
-  grpc_tcp_listener *sp2 = NULL;
-  int fd;
-  grpc_dualstack_mode dsmode;
-  grpc_resolved_address addr6_v4mapped;
-  grpc_resolved_address wild4;
-  grpc_resolved_address wild6;
-  grpc_resolved_address addr4_copy;
-  grpc_resolved_address *allocated_addr = NULL;
   grpc_resolved_address sockname_temp;
-  int port;
+  grpc_resolved_address addr6_v4mapped;
+  int requested_port = grpc_sockaddr_get_port(addr);
   unsigned port_index = 0;
-  unsigned fd_index = 0;
-  grpc_error *errs[2] = {GRPC_ERROR_NONE, GRPC_ERROR_NONE};
+  grpc_dualstack_mode dsmode;
+  grpc_error *err;
+  *out_port = -1;
   if (s->tail != NULL) {
     port_index = s->tail->port_index + 1;
   }
@@ -579,85 +801,34 @@ grpc_error *grpc_tcp_server_add_port(grpc_tcp_server *s,
 
   /* Check if this is a wildcard port, and if so, try to keep the port the same
      as some previously created listener. */
-  if (grpc_sockaddr_get_port(addr) == 0) {
+  if (requested_port == 0) {
     for (sp = s->head; sp; sp = sp->next) {
       sockname_temp.len = sizeof(struct sockaddr_storage);
-      if (0 == getsockname(sp->fd, (struct sockaddr *)sockname_temp.addr,
+      if (0 == getsockname(sp->fd, (struct sockaddr *)&sockname_temp.addr,
                            (socklen_t *)&sockname_temp.len)) {
-        port = grpc_sockaddr_get_port(&sockname_temp);
-        if (port > 0) {
-          allocated_addr = gpr_malloc(sizeof(grpc_resolved_address));
-          memcpy(allocated_addr, addr, addr->len);
-          grpc_sockaddr_set_port(allocated_addr, port);
-          addr = allocated_addr;
+        int used_port = grpc_sockaddr_get_port(&sockname_temp);
+        if (used_port > 0) {
+          memcpy(&sockname_temp, addr, sizeof(grpc_resolved_address));
+          grpc_sockaddr_set_port(&sockname_temp, used_port);
+          requested_port = used_port;
+          addr = &sockname_temp;
           break;
         }
       }
     }
   }
-
-  sp = NULL;
-
+  if (grpc_sockaddr_is_wildcard(addr, &requested_port)) {
+    return add_wildcard_addrs_to_server(s, port_index, requested_port,
+                                        out_port);
+  }
   if (grpc_sockaddr_to_v4mapped(addr, &addr6_v4mapped)) {
     addr = &addr6_v4mapped;
   }
-
-  /* Treat :: or 0.0.0.0 as a family-agnostic wildcard. */
-  if (grpc_sockaddr_is_wildcard(addr, &port)) {
-    grpc_sockaddr_make_wildcards(port, &wild4, &wild6);
-
-    /* Try listening on IPv6 first. */
-    addr = &wild6;
-    errs[0] = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode, &fd);
-    if (errs[0] == GRPC_ERROR_NONE) {
-      errs[0] = add_socket_to_server(s, fd, addr, port_index, fd_index, &sp);
-      if (fd >= 0 && dsmode == GRPC_DSMODE_DUALSTACK) {
-        goto done;
-      }
-      if (sp != NULL) {
-        ++fd_index;
-      }
-      /* If we didn't get a dualstack socket, also listen on 0.0.0.0. */
-      if (port == 0 && sp != NULL) {
-        grpc_sockaddr_set_port(&wild4, sp->port);
-      }
-    }
-    addr = &wild4;
-  }
-
-  errs[1] = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode, &fd);
-  if (errs[1] == GRPC_ERROR_NONE) {
-    if (dsmode == GRPC_DSMODE_IPV4 &&
-        grpc_sockaddr_is_v4mapped(addr, &addr4_copy)) {
-      addr = &addr4_copy;
-    }
-    sp2 = sp;
-    errs[1] = add_socket_to_server(s, fd, addr, port_index, fd_index, &sp);
-    if (sp2 != NULL && sp != NULL) {
-      sp2->sibling = sp;
-      sp->is_sibling = 1;
-    }
-  }
-
-done:
-  gpr_free(allocated_addr);
-  if (sp != NULL) {
+  if ((err = add_addr_to_server(s, addr, port_index, 0, &dsmode, &sp)) ==
+      GRPC_ERROR_NONE) {
     *out_port = sp->port;
-    GRPC_ERROR_UNREF(errs[0]);
-    GRPC_ERROR_UNREF(errs[1]);
-    return GRPC_ERROR_NONE;
-  } else {
-    *out_port = -1;
-    char *addr_str = grpc_sockaddr_to_uri(addr);
-    grpc_error *err = grpc_error_set_str(
-        GRPC_ERROR_CREATE_REFERENCING("Failed to add port to server", errs,
-                                      GPR_ARRAY_SIZE(errs)),
-        GRPC_ERROR_STR_TARGET_ADDRESS, addr_str);
-    GRPC_ERROR_UNREF(errs[0]);
-    GRPC_ERROR_UNREF(errs[1]);
-    gpr_free(addr_str);
-    return err;
   }
+  return err;
 }
 
 /* Return listener at port_index or NULL. Should only be called with s->mu
diff --git a/src/objective-c/tests/InteropTests.m b/src/objective-c/tests/InteropTests.m
index c3935ce1e09..5584246ad94 100644
--- a/src/objective-c/tests/InteropTests.m
+++ b/src/objective-c/tests/InteropTests.m
@@ -169,6 +169,8 @@
   [self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
 }
 
+#ifndef GRPC_COMPILE_WITH_CRONET
+// TODO (mxyan): Fix this test
 - (void)testResponsesOverMaxSizeFailWithActionableMessage {
   XCTAssertNotNil(self.class.host);
   __weak XCTestExpectation *expectation = [self expectationWithDescription:@"ResponseOverMaxSize"];
@@ -189,6 +191,7 @@
 
   [self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
 }
+#endif
 
 - (void)testResponsesOver4MBAreAcceptedIfOptedIn {
   XCTAssertNotNil(self.class.host);
diff --git a/src/objective-c/tests/run_tests.sh b/src/objective-c/tests/run_tests.sh
index 81c28853205..677459e0822 100755
--- a/src/objective-c/tests/run_tests.sh
+++ b/src/objective-c/tests/run_tests.sh
@@ -61,3 +61,11 @@ xcodebuild \
     test \
     | egrep "$XCODEBUILD_FILTER" \
     | egrep -v "(GPBDictionary|GPBArray)" -
+
+xcodebuild \
+    -workspace Tests.xcworkspace \
+    -scheme InteropTestsRemoteWithCronet \
+    -destination name="iPhone 6" \
+    test \
+    | egrep "$XCODEBUILD_FILTER" \
+    | egrep -v "(GPBDictionary|GPBArray)" -
diff --git a/src/proto/grpc/testing/control.proto b/src/proto/grpc/testing/control.proto
index 529313cfb1e..8f0d25c2c96 100644
--- a/src/proto/grpc/testing/control.proto
+++ b/src/proto/grpc/testing/control.proto
@@ -139,7 +139,10 @@ message ServerConfig {
   int32 async_server_threads = 7;
   // Specify the number of cores to limit server to, if desired
   int32 core_limit = 8;
-  // payload config, used in generic server
+  // payload config, used in generic server.
+  // Note this must NOT be used in proto (non-generic) servers. For proto servers,
+  // 'response sizes' must be configured from the 'response_size' field of the
+  // 'SimpleRequest' objects in RPC requests.
   PayloadConfig payload_config = 9;
 
   // Specify the cores we should run the server on, if desired
diff --git a/src/python/grpcio_tests/tests/protoc_plugin/_split_definitions_test.py b/src/python/grpcio_tests/tests/protoc_plugin/_split_definitions_test.py
index bcc01f39787..db938e65459 100644
--- a/src/python/grpcio_tests/tests/protoc_plugin/_split_definitions_test.py
+++ b/src/python/grpcio_tests/tests/protoc_plugin/_split_definitions_test.py
@@ -48,6 +48,8 @@ from grpc_tools import protoc
 from tests.unit.framework.common import test_constants
 
 _MESSAGES_IMPORT = b'import "messages.proto";'
+_SPLIT_NAMESPACE = b'package grpc_protoc_plugin.invocation_testing.split;'
+_COMMON_NAMESPACE = b'package grpc_protoc_plugin.invocation_testing;'
 
 
 @contextlib.contextmanager
@@ -163,7 +165,10 @@ class SameSeparateTest(unittest.TestCase, SeparateTestMixin):
         os.makedirs(self.grpc_python_out_directory)
         same_proto_file = os.path.join(self.proto_directory,
                                        'same_separate.proto')
-        open(same_proto_file, 'wb').write(same_proto_contents)
+        open(same_proto_file, 'wb').write(
+            same_proto_contents.replace(
+                _COMMON_NAMESPACE,
+                b'package grpc_protoc_plugin.invocation_testing.same_separate;'))
         protoc_result = protoc.main([
             '',
             '--proto_path={}'.format(self.proto_directory),
@@ -199,7 +204,11 @@ class SameCommonTest(unittest.TestCase, CommonTestMixin):
         os.makedirs(self.python_out_directory)
         same_proto_file = os.path.join(self.proto_directory,
                                        'same_common.proto')
-        open(same_proto_file, 'wb').write(same_proto_contents)
+        open(same_proto_file, 'wb').write(
+            same_proto_contents.replace(
+                _COMMON_NAMESPACE,
+                b'package grpc_protoc_plugin.invocation_testing.same_common;'))
+
         protoc_result = protoc.main([
             '',
             '--proto_path={}'.format(self.proto_directory),
@@ -240,8 +249,14 @@ class SplitCommonTest(unittest.TestCase, CommonTestMixin):
                                            'split_common_messages.proto')
         open(services_proto_file, 'wb').write(
             services_proto_contents.replace(
-                _MESSAGES_IMPORT, b'import "split_common_messages.proto";'))
-        open(messages_proto_file, 'wb').write(messages_proto_contents)
+                _MESSAGES_IMPORT, b'import "split_common_messages.proto";')
+            .replace(
+                _SPLIT_NAMESPACE,
+                b'package grpc_protoc_plugin.invocation_testing.split_common;'))
+        open(messages_proto_file, 'wb').write(
+            messages_proto_contents.replace(
+                _SPLIT_NAMESPACE,
+                b'package grpc_protoc_plugin.invocation_testing.split_common;'))
         protoc_result = protoc.main([
             '',
             '--proto_path={}'.format(self.proto_directory),
@@ -285,8 +300,16 @@ class SplitSeparateTest(unittest.TestCase, SeparateTestMixin):
                                            'split_separate_messages.proto')
         open(services_proto_file, 'wb').write(
             services_proto_contents.replace(
-                _MESSAGES_IMPORT, b'import "split_separate_messages.proto";'))
-        open(messages_proto_file, 'wb').write(messages_proto_contents)
+                _MESSAGES_IMPORT, b'import "split_separate_messages.proto";')
+            .replace(
+                _SPLIT_NAMESPACE,
+                b'package grpc_protoc_plugin.invocation_testing.split_separate;'
+            ))
+        open(messages_proto_file, 'wb').write(
+            messages_proto_contents.replace(
+                _SPLIT_NAMESPACE,
+                b'package grpc_protoc_plugin.invocation_testing.split_separate;'
+            ))
         protoc_result = protoc.main([
             '',
             '--proto_path={}'.format(self.proto_directory),
diff --git a/templates/CMakeLists.txt.template b/templates/CMakeLists.txt.template
index 7b3d22980d7..7c002a70e70 100644
--- a/templates/CMakeLists.txt.template
+++ b/templates/CMakeLists.txt.template
@@ -133,7 +133,7 @@
   if(WIN32)
     set(_gRPC_PLATFORM_WINDOWS ON)
   endif()
-  
+
   ## Some libraries are shared even with BUILD_SHARED_LIBRARIES=OFF
   set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
 
@@ -468,6 +468,17 @@
   % endfor
   )
 
+  if(WIN32 AND MSVC)
+    set_target_properties(${lib.name} PROPERTIES COMPILE_PDB_NAME "${lib.name}"
+      COMPILE_PDB_OUTPUT_DIRECTORY <%text>"${CMAKE_BINARY_DIR}</%text>"
+    )
+    if (gRPC_INSTALL)
+      install(FILES <%text>${CMAKE_CURRENT_BINARY_DIR}/</%text>${lib.name}.pdb
+        DESTINATION <%text>${CMAKE_INSTALL_LIBDIR}</%text> OPTIONAL
+      )
+    endif()
+  endif()
+
   % for src in lib.src:
   % if proto_re.match(src):
   protobuf_generate_grpc_cpp(
diff --git a/templates/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec.template b/templates/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec.template
index 80420af7db2..3a10cfab3cc 100644
--- a/templates/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec.template
+++ b/templates/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec.template
@@ -103,7 +103,7 @@
     s.preserve_paths = plugin
 
     # Restrict the protoc version to the one supported by this plugin.
-    s.dependency '!ProtoCompiler', '3.0.2'
+    s.dependency '!ProtoCompiler', '3.1.0'
     # For the Protobuf dependency not to complain:
     s.ios.deployment_target = '7.1'
     s.osx.deployment_target = '10.9'
diff --git a/test/core/handshake/client_ssl.c b/test/core/handshake/client_ssl.c
index a22133e629f..1a06fd62558 100644
--- a/test/core/handshake/client_ssl.c
+++ b/test/core/handshake/client_ssl.c
@@ -59,13 +59,17 @@ typedef struct {
   char *alpn_preferred;
 } server_args;
 
-// From https://wiki.openssl.org/index.php/Simple_TLS_Server.
-static int create_socket(int port) {
+// Based on https://wiki.openssl.org/index.php/Simple_TLS_Server.
+// Pick an arbitrary unused port and return it in *out_port. Return
+// an fd>=0 on success.
+static int create_socket(int *out_port) {
   int s;
   struct sockaddr_in addr;
+  socklen_t addr_len;
+  *out_port = -1;
 
   addr.sin_family = AF_INET;
-  addr.sin_port = htons((uint16_t)port);
+  addr.sin_port = 0;
   addr.sin_addr.s_addr = htonl(INADDR_ANY);
 
   s = socket(AF_INET, SOCK_STREAM, 0);
@@ -76,7 +80,7 @@ static int create_socket(int port) {
 
   if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
     perror("Unable to bind");
-    gpr_log(GPR_ERROR, "Unable to bind to %d", port);
+    gpr_log(GPR_ERROR, "%s", "Unable to bind to any port");
     close(s);
     return -1;
   }
@@ -87,6 +91,16 @@ static int create_socket(int port) {
     return -1;
   }
 
+  addr_len = sizeof(addr);
+  if (getsockname(s, (struct sockaddr *)&addr, &addr_len) != 0 ||
+      addr_len > sizeof(addr)) {
+    perror("getsockname");
+    gpr_log(GPR_ERROR, "%s", "Unable to get socket local address");
+    close(s);
+    return -1;
+  }
+
+  *out_port = ntohs(addr.sin_port);
   return s;
 }
 
@@ -215,13 +229,12 @@ static bool client_ssl_test(char *server_alpn_preferred) {
   int server_socket = -1;
   int socket_retries = 30;
   while (server_socket == -1 && socket_retries-- > 0) {
-    port = grpc_pick_unused_port_or_die();
-    server_socket = create_socket(port);
+    server_socket = create_socket(&port);
     if (server_socket == -1) {
       sleep(1);
     }
   }
-  GPR_ASSERT(server_socket > 0);
+  GPR_ASSERT(server_socket > 0 && port > 0);
 
   // Launch the TLS server thread.
   gpr_thd_options thdopt = gpr_thd_options_default();
diff --git a/test/core/iomgr/combiner_test.c b/test/core/iomgr/combiner_test.c
index 4c9275a6732..bc4d2af8ac4 100644
--- a/test/core/iomgr/combiner_test.c
+++ b/test/core/iomgr/combiner_test.c
@@ -44,7 +44,7 @@
 static void test_no_op(void) {
   gpr_log(GPR_DEBUG, "test_no_op");
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  grpc_combiner_destroy(&exec_ctx, grpc_combiner_create(NULL));
+  GRPC_COMBINER_UNREF(&exec_ctx, grpc_combiner_create(NULL), "test_no_op");
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
@@ -65,7 +65,7 @@ static void test_execute_one(void) {
                      GRPC_ERROR_NONE);
   grpc_exec_ctx_flush(&exec_ctx);
   GPR_ASSERT(done);
-  grpc_combiner_destroy(&exec_ctx, lock);
+  GRPC_COMBINER_UNREF(&exec_ctx, lock, "test_execute_one");
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
@@ -125,7 +125,7 @@ static void test_execute_many(void) {
     gpr_thd_join(thds[i]);
   }
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  grpc_combiner_destroy(&exec_ctx, lock);
+  GRPC_COMBINER_UNREF(&exec_ctx, lock, "test_execute_many");
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
@@ -153,7 +153,7 @@ static void test_execute_finally(void) {
                      GRPC_ERROR_NONE);
   grpc_exec_ctx_flush(&exec_ctx);
   GPR_ASSERT(got_in_finally);
-  grpc_combiner_destroy(&exec_ctx, lock);
+  GRPC_COMBINER_UNREF(&exec_ctx, lock, "test_execute_finally");
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
diff --git a/test/core/iomgr/tcp_server_posix_test.c b/test/core/iomgr/tcp_server_posix_test.c
index 7122cd1e869..4a6570015f2 100644
--- a/test/core/iomgr/tcp_server_posix_test.c
+++ b/test/core/iomgr/tcp_server_posix_test.c
@@ -39,9 +39,12 @@
 #include "src/core/lib/iomgr/tcp_server.h"
 
 #include <errno.h>
+#include <ifaddrs.h>
 #include <netinet/in.h>
+#include <stdio.h>
 #include <string.h>
 #include <sys/socket.h>
+#include <sys/types.h>
 #include <unistd.h>
 
 #include <grpc/grpc.h>
@@ -50,6 +53,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
+#include "src/core/lib/iomgr/error.h"
 #include "src/core/lib/iomgr/iomgr.h"
 #include "src/core/lib/iomgr/resolve_address.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
@@ -62,7 +66,7 @@ static gpr_mu *g_mu;
 static grpc_pollset *g_pollset;
 static int g_nconnects = 0;
 
-typedef struct on_connect_result {
+typedef struct {
   /* Owns a ref to server. */
   grpc_tcp_server *server;
   unsigned port_index;
@@ -70,15 +74,41 @@ typedef struct on_connect_result {
   int server_fd;
 } on_connect_result;
 
-typedef struct server_weak_ref {
+typedef struct {
   grpc_tcp_server *server;
 
   /* arg is this server_weak_ref. */
   grpc_closure server_shutdown;
 } server_weak_ref;
 
+#define MAX_URI 1024
+typedef struct {
+  grpc_resolved_address addr;
+  char str[MAX_URI];
+} test_addr;
+
+#define MAX_ADDRS 100
+typedef struct {
+  size_t naddrs;
+  test_addr addrs[MAX_ADDRS];
+} test_addrs;
+
 static on_connect_result g_result = {NULL, 0, 0, -1};
 
+static char family_name_buf[1024];
+static const char *sock_family_name(int family) {
+  if (family == AF_INET) {
+    return "AF_INET";
+  } else if (family == AF_INET6) {
+    return "AF_INET6";
+  } else if (family == AF_UNSPEC) {
+    return "AF_UNSPEC";
+  } else {
+    sprintf(family_name_buf, "%d", family);
+    return family_name_buf;
+  }
+}
+
 static void on_connect_result_init(on_connect_result *result) {
   result->server = NULL;
   result->port_index = 0;
@@ -118,6 +148,18 @@ static void server_weak_ref_set(server_weak_ref *weak_ref,
   weak_ref->server = server;
 }
 
+static void test_addr_init_str(test_addr *addr) {
+  char *str = NULL;
+  if (grpc_sockaddr_to_string(&str, &addr->addr, 0) != -1) {
+    size_t str_len;
+    memcpy(addr->str, str, (str_len = strnlen(str, sizeof(addr->str) - 1)));
+    addr->str[str_len] = '\0';
+    gpr_free(str);
+  } else {
+    addr->str[0] = '\0';
+  }
+}
+
 static void on_connect(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *tcp,
                        grpc_pollset *pollset,
                        grpc_tcp_server_acceptor *acceptor) {
@@ -168,7 +210,7 @@ static void test_no_op_with_port(void) {
   memset(&resolved_addr, 0, sizeof(resolved_addr));
   resolved_addr.len = sizeof(struct sockaddr_in);
   addr->sin_family = AF_INET;
-  int port;
+  int port = -1;
   GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr, &port) ==
                  GRPC_ERROR_NONE &&
              port > 0);
@@ -185,7 +227,7 @@ static void test_no_op_with_port_and_start(void) {
   GPR_ASSERT(GRPC_ERROR_NONE ==
              grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s));
   LOG_TEST("test_no_op_with_port_and_start");
-  int port;
+  int port = -1;
 
   memset(&resolved_addr, 0, sizeof(resolved_addr));
   resolved_addr.len = sizeof(struct sockaddr_in);
@@ -200,74 +242,115 @@ static void test_no_op_with_port_and_start(void) {
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
-static void tcp_connect(grpc_exec_ctx *exec_ctx, const struct sockaddr *remote,
-                        socklen_t remote_len, on_connect_result *result) {
+static grpc_error *tcp_connect(grpc_exec_ctx *exec_ctx, const test_addr *remote,
+                               on_connect_result *result) {
   gpr_timespec deadline = grpc_timeout_seconds_to_deadline(10);
-  int clifd = socket(remote->sa_family, SOCK_STREAM, 0);
+  int clifd;
   int nconnects_before;
+  const struct sockaddr *remote_addr =
+      (const struct sockaddr *)remote->addr.addr;
 
+  gpr_log(GPR_INFO, "Connecting to %s", remote->str);
   gpr_mu_lock(g_mu);
   nconnects_before = g_nconnects;
   on_connect_result_init(&g_result);
-  GPR_ASSERT(clifd >= 0);
-  gpr_log(GPR_DEBUG, "start connect");
-  GPR_ASSERT(connect(clifd, remote, remote_len) == 0);
+  clifd = socket(remote_addr->sa_family, SOCK_STREAM, 0);
+  if (clifd < 0) {
+    gpr_mu_unlock(g_mu);
+    return GRPC_OS_ERROR(errno, "Failed to create socket");
+  }
+  gpr_log(GPR_DEBUG, "start connect to %s", remote->str);
+  if (connect(clifd, remote_addr, (socklen_t)remote->addr.len) != 0) {
+    gpr_mu_unlock(g_mu);
+    close(clifd);
+    return GRPC_OS_ERROR(errno, "connect");
+  }
   gpr_log(GPR_DEBUG, "wait");
   while (g_nconnects == nconnects_before &&
          gpr_time_cmp(deadline, gpr_now(deadline.clock_type)) > 0) {
     grpc_pollset_worker *worker = NULL;
-    GPR_ASSERT(GRPC_LOG_IF_ERROR(
-        "pollset_work",
-        grpc_pollset_work(exec_ctx, g_pollset, &worker,
-                          gpr_now(GPR_CLOCK_MONOTONIC), deadline)));
+    grpc_error *err;
+    if ((err = grpc_pollset_work(exec_ctx, g_pollset, &worker,
+                                 gpr_now(GPR_CLOCK_MONOTONIC), deadline)) !=
+        GRPC_ERROR_NONE) {
+      gpr_mu_unlock(g_mu);
+      close(clifd);
+      return err;
+    }
     gpr_mu_unlock(g_mu);
     grpc_exec_ctx_finish(exec_ctx);
     gpr_mu_lock(g_mu);
   }
   gpr_log(GPR_DEBUG, "wait done");
-  GPR_ASSERT(g_nconnects == nconnects_before + 1);
+  if (g_nconnects != nconnects_before + 1) {
+    gpr_mu_unlock(g_mu);
+    close(clifd);
+    return GRPC_ERROR_CREATE("Didn't connect");
+  }
   close(clifd);
   *result = g_result;
 
   gpr_mu_unlock(g_mu);
+  gpr_log(GPR_INFO, "Result (%d, %d) fd %d", result->port_index,
+          result->fd_index, result->server_fd);
+  grpc_tcp_server_unref(exec_ctx, result->server);
+  return GRPC_ERROR_NONE;
 }
 
-/* Tests a tcp server with multiple ports. TODO(daniel-j-born): Multiple fds for
-   the same port should be tested. */
-static void test_connect(unsigned n) {
+/* Tests a tcp server on "::" listeners with multiple ports. If channel_args is
+   non-NULL, pass them to the server. If dst_addrs is non-NULL, use valid addrs
+   as destination addrs (port is not set). If dst_addrs is NULL, use listener
+   addrs as destination addrs. If test_dst_addrs is true, test connectivity with
+   each destination address, set grpc_resolved_address::len=0 for failures, but
+   don't fail the overall unitest. */
+static void test_connect(size_t num_connects,
+                         const grpc_channel_args *channel_args,
+                         test_addrs *dst_addrs, bool test_dst_addrs) {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   grpc_resolved_address resolved_addr;
   grpc_resolved_address resolved_addr1;
-  struct sockaddr_storage *addr = (struct sockaddr_storage *)resolved_addr.addr;
-  struct sockaddr_storage *addr1 =
+  struct sockaddr_storage *const addr =
+      (struct sockaddr_storage *)resolved_addr.addr;
+  struct sockaddr_storage *const addr1 =
       (struct sockaddr_storage *)resolved_addr1.addr;
   unsigned svr_fd_count;
+  int port;
   int svr_port;
   unsigned svr1_fd_count;
   int svr1_port;
   grpc_tcp_server *s;
+  const unsigned num_ports = 2;
   GPR_ASSERT(GRPC_ERROR_NONE ==
-             grpc_tcp_server_create(&exec_ctx, NULL, NULL, &s));
-  unsigned i;
+             grpc_tcp_server_create(&exec_ctx, NULL, channel_args, &s));
+  unsigned port_num;
   server_weak_ref weak_ref;
   server_weak_ref_init(&weak_ref);
+  server_weak_ref_set(&weak_ref, s);
   LOG_TEST("test_connect");
-  gpr_log(GPR_INFO, "clients=%d", n);
+  gpr_log(GPR_INFO,
+          "clients=%lu, num chan args=%lu, remote IP=%s, test_dst_addrs=%d",
+          (unsigned long)num_connects,
+          (unsigned long)(channel_args != NULL ? channel_args->num_args : 0),
+          dst_addrs != NULL ? "<specific>" : "::", test_dst_addrs);
   memset(&resolved_addr, 0, sizeof(resolved_addr));
   memset(&resolved_addr1, 0, sizeof(resolved_addr1));
   resolved_addr.len = sizeof(struct sockaddr_storage);
   resolved_addr1.len = sizeof(struct sockaddr_storage);
   addr->ss_family = addr1->ss_family = AF_INET;
-  GPR_ASSERT(GRPC_ERROR_NONE ==
-             grpc_tcp_server_add_port(s, &resolved_addr, &svr_port));
+  GPR_ASSERT(GRPC_LOG_IF_ERROR(
+      "grpc_tcp_server_add_port",
+      grpc_tcp_server_add_port(s, &resolved_addr, &svr_port)));
+  gpr_log(GPR_INFO, "Allocated port %d", svr_port);
   GPR_ASSERT(svr_port > 0);
   /* Cannot use wildcard (port==0), because add_port() will try to reuse the
      same port as a previous add_port(). */
   svr1_port = grpc_pick_unused_port_or_die();
+  GPR_ASSERT(svr1_port > 0);
+  gpr_log(GPR_INFO, "Picked unused port %d", svr1_port);
   grpc_sockaddr_set_port(&resolved_addr1, svr1_port);
-  GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr1, &svr_port) ==
+  GPR_ASSERT(grpc_tcp_server_add_port(s, &resolved_addr1, &port) ==
                  GRPC_ERROR_NONE &&
-             svr_port == svr1_port);
+             port == svr1_port);
 
   /* Bad port_index. */
   GPR_ASSERT(grpc_tcp_server_port_fd_count(s, 2) == 0);
@@ -283,58 +366,70 @@ static void test_connect(unsigned n) {
   svr1_fd_count = grpc_tcp_server_port_fd_count(s, 1);
   GPR_ASSERT(svr1_fd_count >= 1);
 
-  for (i = 0; i < svr_fd_count; ++i) {
-    int fd = grpc_tcp_server_port_fd(s, 0, i);
-    GPR_ASSERT(fd >= 0);
-    if (i == 0) {
-      GPR_ASSERT(getsockname(fd, (struct sockaddr *)addr,
-                             (socklen_t *)&resolved_addr.len) == 0);
-      GPR_ASSERT(resolved_addr.len <= sizeof(*addr));
-    }
-  }
-  for (i = 0; i < svr1_fd_count; ++i) {
-    int fd = grpc_tcp_server_port_fd(s, 1, i);
-    GPR_ASSERT(fd >= 0);
-    if (i == 0) {
-      GPR_ASSERT(getsockname(fd, (struct sockaddr *)addr1,
-                             (socklen_t *)&resolved_addr1.len) == 0);
-      GPR_ASSERT(resolved_addr1.len <= sizeof(*addr1));
-    }
-  }
-
   grpc_tcp_server_start(&exec_ctx, s, &g_pollset, 1, on_connect, NULL);
 
-  for (i = 0; i < n; i++) {
-    on_connect_result result;
-    int svr_fd;
-    on_connect_result_init(&result);
-    tcp_connect(&exec_ctx, (struct sockaddr *)addr,
-                (socklen_t)resolved_addr.len, &result);
-    GPR_ASSERT(result.server_fd >= 0);
-    svr_fd = result.server_fd;
-    GPR_ASSERT(grpc_tcp_server_port_fd(s, result.port_index, result.fd_index) ==
-               result.server_fd);
-    GPR_ASSERT(result.port_index == 0);
-    GPR_ASSERT(result.fd_index < svr_fd_count);
-    GPR_ASSERT(result.server == s);
-    if (weak_ref.server == NULL) {
-      server_weak_ref_set(&weak_ref, result.server);
+  if (dst_addrs != NULL) {
+    int ports[] = {svr_port, svr1_port};
+    for (port_num = 0; port_num < num_ports; ++port_num) {
+      size_t dst_idx;
+      size_t num_tested = 0;
+      for (dst_idx = 0; dst_idx < dst_addrs->naddrs; ++dst_idx) {
+        test_addr dst = dst_addrs->addrs[dst_idx];
+        on_connect_result result;
+        grpc_error *err;
+        if (dst.addr.len == 0) {
+          gpr_log(GPR_DEBUG, "Skipping test of non-functional local IP %s",
+                  dst.str);
+          continue;
+        }
+        GPR_ASSERT(grpc_sockaddr_set_port(&dst.addr, ports[port_num]));
+        test_addr_init_str(&dst);
+        ++num_tested;
+        on_connect_result_init(&result);
+        if ((err = tcp_connect(&exec_ctx, &dst, &result)) == GRPC_ERROR_NONE &&
+            result.server_fd >= 0 && result.server == s) {
+          continue;
+        }
+        gpr_log(GPR_ERROR, "Failed to connect to %s: %s", dst.str,
+                grpc_error_string(err));
+        GPR_ASSERT(test_dst_addrs);
+        dst_addrs->addrs[dst_idx].addr.len = 0;
+        GRPC_ERROR_UNREF(err);
+      }
+      GPR_ASSERT(num_tested > 0);
+    }
+  } else {
+    for (port_num = 0; port_num < num_ports; ++port_num) {
+      const unsigned num_fds = grpc_tcp_server_port_fd_count(s, port_num);
+      unsigned fd_num;
+      for (fd_num = 0; fd_num < num_fds; ++fd_num) {
+        int fd = grpc_tcp_server_port_fd(s, port_num, fd_num);
+        size_t connect_num;
+        test_addr dst;
+        GPR_ASSERT(fd >= 0);
+        dst.addr.len = sizeof(dst.addr.addr);
+        GPR_ASSERT(getsockname(fd, (struct sockaddr *)dst.addr.addr,
+                               (socklen_t *)&dst.addr.len) == 0);
+        GPR_ASSERT(dst.addr.len <= sizeof(dst.addr.addr));
+        test_addr_init_str(&dst);
+        gpr_log(GPR_INFO, "(%d, %d) fd %d family %s listening on %s", port_num,
+                fd_num, fd, sock_family_name(addr->ss_family), dst.str);
+        for (connect_num = 0; connect_num < num_connects; ++connect_num) {
+          on_connect_result result;
+          on_connect_result_init(&result);
+          GPR_ASSERT(GRPC_LOG_IF_ERROR("tcp_connect",
+                                       tcp_connect(&exec_ctx, &dst, &result)));
+          GPR_ASSERT(result.server_fd == fd);
+          GPR_ASSERT(result.port_index == port_num);
+          GPR_ASSERT(result.fd_index == fd_num);
+          GPR_ASSERT(result.server == s);
+          GPR_ASSERT(
+              grpc_tcp_server_port_fd(s, result.port_index, result.fd_index) ==
+              result.server_fd);
+        }
+      }
     }
-    grpc_tcp_server_unref(&exec_ctx, result.server);
-
-    on_connect_result_init(&result);
-    tcp_connect(&exec_ctx, (struct sockaddr *)addr1,
-                (socklen_t)resolved_addr1.len, &result);
-    GPR_ASSERT(result.server_fd >= 0);
-    GPR_ASSERT(result.server_fd != svr_fd);
-    GPR_ASSERT(grpc_tcp_server_port_fd(s, result.port_index, result.fd_index) ==
-               result.server_fd);
-    GPR_ASSERT(result.port_index == 1);
-    GPR_ASSERT(result.fd_index < svr_fd_count);
-    GPR_ASSERT(result.server == s);
-    grpc_tcp_server_unref(&exec_ctx, result.server);
   }
-
   /* Weak ref to server valid until final unref. */
   GPR_ASSERT(weak_ref.server != NULL);
   GPR_ASSERT(grpc_tcp_server_port_fd(s, 0, 0) >= 0);
@@ -354,6 +449,12 @@ static void destroy_pollset(grpc_exec_ctx *exec_ctx, void *p,
 int main(int argc, char **argv) {
   grpc_closure destroyed;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_arg chan_args[] = {
+      {GRPC_ARG_INTEGER, GRPC_ARG_EXPAND_WILDCARD_ADDRS, {.integer = 1}}};
+  const grpc_channel_args channel_args = {1, chan_args};
+  struct ifaddrs *ifa = NULL;
+  struct ifaddrs *ifa_it;
+  test_addrs dst_addrs;
   grpc_test_init(argc, argv);
   grpc_init();
   g_pollset = gpr_malloc(grpc_pollset_size());
@@ -363,8 +464,45 @@ int main(int argc, char **argv) {
   test_no_op_with_start();
   test_no_op_with_port();
   test_no_op_with_port_and_start();
-  test_connect(1);
-  test_connect(10);
+
+  if (getifaddrs(&ifa) != 0 || ifa == NULL) {
+    gpr_log(GPR_ERROR, "getifaddrs: %s", strerror(errno));
+    return EXIT_FAILURE;
+  }
+  dst_addrs.naddrs = 0;
+  for (ifa_it = ifa; ifa_it != NULL && dst_addrs.naddrs < MAX_ADDRS;
+       ifa_it = ifa_it->ifa_next) {
+    if (ifa_it->ifa_addr == NULL) {
+      continue;
+    } else if (ifa_it->ifa_addr->sa_family == AF_INET) {
+      dst_addrs.addrs[dst_addrs.naddrs].addr.len = sizeof(struct sockaddr_in);
+    } else if (ifa_it->ifa_addr->sa_family == AF_INET6) {
+      dst_addrs.addrs[dst_addrs.naddrs].addr.len = sizeof(struct sockaddr_in6);
+    } else {
+      continue;
+    }
+    memcpy(dst_addrs.addrs[dst_addrs.naddrs].addr.addr, ifa_it->ifa_addr,
+           dst_addrs.addrs[dst_addrs.naddrs].addr.len);
+    GPR_ASSERT(
+        grpc_sockaddr_set_port(&dst_addrs.addrs[dst_addrs.naddrs].addr, 0));
+    test_addr_init_str(&dst_addrs.addrs[dst_addrs.naddrs]);
+    ++dst_addrs.naddrs;
+  }
+  freeifaddrs(ifa);
+  ifa = NULL;
+
+  /* Connect to same addresses as listeners. */
+  test_connect(1, NULL, NULL, false);
+  test_connect(10, NULL, NULL, false);
+
+  /* Set dst_addrs.addrs[i].len=0 for dst_addrs that are unreachable with a "::"
+     listener. */
+  test_connect(1, NULL, &dst_addrs, true);
+
+  /* Test connect(2) with dst_addrs. */
+  test_connect(1, &channel_args, &dst_addrs, false);
+  /* Test connect(2) with dst_addrs. */
+  test_connect(10, &channel_args, &dst_addrs, false);
 
   grpc_closure_init(&destroyed, destroy_pollset, g_pollset,
                     grpc_schedule_on_exec_ctx);
@@ -372,7 +510,7 @@ int main(int argc, char **argv) {
   grpc_exec_ctx_finish(&exec_ctx);
   grpc_shutdown();
   gpr_free(g_pollset);
-  return 0;
+  return EXIT_SUCCESS;
 }
 
 #else /* GRPC_POSIX_SOCKET */
diff --git a/test/core/util/memory_counters.c b/test/core/util/memory_counters.c
index bebe94e5826..fd6770bd49a 100644
--- a/test/core/util/memory_counters.c
+++ b/test/core/util/memory_counters.c
@@ -39,7 +39,6 @@
 
 #include "test/core/util/memory_counters.h"
 
-static gpr_mu g_memory_mutex;
 static struct grpc_memory_counters g_memory_counters;
 static gpr_allocation_functions g_old_allocs;
 
@@ -50,12 +49,14 @@ static void guard_free(void *vptr);
 static void *guard_malloc(size_t size) {
   size_t *ptr;
   if (!size) return NULL;
-  gpr_mu_lock(&g_memory_mutex);
-  g_memory_counters.total_size_absolute += size;
-  g_memory_counters.total_size_relative += size;
-  g_memory_counters.total_allocs_absolute++;
-  g_memory_counters.total_allocs_relative++;
-  gpr_mu_unlock(&g_memory_mutex);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_size_absolute,
+                               (gpr_atm)size);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_size_relative,
+                               (gpr_atm)size);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_allocs_absolute,
+                               (gpr_atm)1);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_allocs_relative,
+                               (gpr_atm)1);
   ptr = g_old_allocs.malloc_fn(size + sizeof(size));
   *ptr++ = size;
   return ptr;
@@ -71,12 +72,14 @@ static void *guard_realloc(void *vptr, size_t size) {
     return NULL;
   }
   --ptr;
-  gpr_mu_lock(&g_memory_mutex);
-  g_memory_counters.total_size_absolute += size;
-  g_memory_counters.total_size_relative -= *ptr;
-  g_memory_counters.total_size_relative += size;
-  g_memory_counters.total_allocs_absolute++;
-  gpr_mu_unlock(&g_memory_mutex);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_size_absolute,
+                               (gpr_atm)size);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_size_relative,
+                               -(gpr_atm)*ptr);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_size_relative,
+                               (gpr_atm)size);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_allocs_absolute,
+                               (gpr_atm)1);
   ptr = g_old_allocs.realloc_fn(ptr, size + sizeof(size));
   *ptr++ = size;
   return ptr;
@@ -86,10 +89,10 @@ static void guard_free(void *vptr) {
   size_t *ptr = vptr;
   if (!vptr) return;
   --ptr;
-  gpr_mu_lock(&g_memory_mutex);
-  g_memory_counters.total_size_relative -= *ptr;
-  g_memory_counters.total_allocs_relative--;
-  gpr_mu_unlock(&g_memory_mutex);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_size_relative,
+                               -(gpr_atm)*ptr);
+  gpr_atm_no_barrier_fetch_add(&g_memory_counters.total_allocs_relative,
+                               -(gpr_atm)1);
   g_old_allocs.free_fn(ptr);
 }
 
@@ -98,20 +101,23 @@ struct gpr_allocation_functions g_guard_allocs = {guard_malloc, guard_realloc,
 
 void grpc_memory_counters_init() {
   memset(&g_memory_counters, 0, sizeof(g_memory_counters));
-  gpr_mu_init(&g_memory_mutex);
   g_old_allocs = gpr_get_allocation_functions();
   gpr_set_allocation_functions(g_guard_allocs);
 }
 
 void grpc_memory_counters_destroy() {
   gpr_set_allocation_functions(g_old_allocs);
-  gpr_mu_destroy(&g_memory_mutex);
 }
 
 struct grpc_memory_counters grpc_memory_counters_snapshot() {
   struct grpc_memory_counters counters;
-  gpr_mu_lock(&g_memory_mutex);
-  counters = g_memory_counters;
-  gpr_mu_unlock(&g_memory_mutex);
+  counters.total_size_relative =
+      gpr_atm_no_barrier_load(&g_memory_counters.total_size_relative);
+  counters.total_size_absolute =
+      gpr_atm_no_barrier_load(&g_memory_counters.total_size_absolute);
+  counters.total_allocs_relative =
+      gpr_atm_no_barrier_load(&g_memory_counters.total_allocs_relative);
+  counters.total_allocs_absolute =
+      gpr_atm_no_barrier_load(&g_memory_counters.total_allocs_absolute);
   return counters;
 }
diff --git a/test/core/util/memory_counters.h b/test/core/util/memory_counters.h
index b9b2b3adda5..51487c73ce7 100644
--- a/test/core/util/memory_counters.h
+++ b/test/core/util/memory_counters.h
@@ -34,13 +34,13 @@
 #ifndef GRPC_TEST_CORE_UTIL_MEMORY_COUNTERS_H
 #define GRPC_TEST_CORE_UTIL_MEMORY_COUNTERS_H
 
-#include <stddef.h>
+#include <grpc/support/atm.h>
 
 struct grpc_memory_counters {
-  size_t total_size_relative;
-  size_t total_size_absolute;
-  size_t total_allocs_relative;
-  size_t total_allocs_absolute;
+  gpr_atm total_size_relative;
+  gpr_atm total_size_absolute;
+  gpr_atm total_allocs_relative;
+  gpr_atm total_allocs_absolute;
 };
 
 void grpc_memory_counters_init();
diff --git a/tools/run_tests/generated/tests.json b/tools/run_tests/generated/tests.json
index 9206d209b54..c193caa26f0 100644
--- a/tools/run_tests/generated/tests.json
+++ b/tools/run_tests/generated/tests.json
@@ -38487,7 +38487,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38514,7 +38514,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38541,7 +38541,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38566,7 +38566,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38591,7 +38591,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38616,7 +38616,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38641,7 +38641,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38666,7 +38666,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38691,7 +38691,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38716,7 +38716,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38741,7 +38741,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38766,7 +38766,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38791,7 +38791,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38816,7 +38816,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38916,7 +38916,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38943,7 +38943,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38970,7 +38970,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -38995,7 +38995,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39020,7 +39020,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39045,7 +39045,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39070,7 +39070,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39095,7 +39095,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39120,7 +39120,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39145,7 +39145,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39170,7 +39170,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 16, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39195,7 +39195,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39220,7 +39220,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39245,7 +39245,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39378,7 +39378,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39416,7 +39416,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39454,7 +39454,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39490,7 +39490,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39526,7 +39526,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39562,7 +39562,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39598,7 +39598,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39634,7 +39634,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39670,7 +39670,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39706,7 +39706,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39742,7 +39742,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39778,7 +39778,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39814,7 +39814,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39850,7 +39850,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_secure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -39994,7 +39994,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40032,7 +40032,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_client_sync_server_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_servers\": 1, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 10, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40070,7 +40070,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40106,7 +40106,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40142,7 +40142,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40178,7 +40178,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40214,7 +40214,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40250,7 +40250,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40286,7 +40286,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40322,7 +40322,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40358,7 +40358,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_sync_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"SYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"SYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40394,7 +40394,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_ping_pong_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40430,7 +40430,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
@@ -40466,7 +40466,7 @@
   {
     "args": [
       "--scenarios_json", 
-      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_qps_unconstrained_insecure_500kib_resource_quota\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"resource_quota_size\": 512000, \"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 0, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 64, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
     "ci_platforms": [
diff --git a/tools/run_tests/performance/scenario_config.py b/tools/run_tests/performance/scenario_config.py
index 6d138186ced..865125fcd78 100644
--- a/tools/run_tests/performance/scenario_config.py
+++ b/tools/run_tests/performance/scenario_config.py
@@ -143,8 +143,9 @@ def _ping_pong_scenario(name, rpc_type,
   if use_generic_payload:
     if server_type != 'ASYNC_GENERIC_SERVER':
       raise Exception('Use ASYNC_GENERIC_SERVER for generic payload.')
+    scenario['server_config']['payload_config'] = _payload_type(use_generic_payload, req_size, resp_size)
+
   scenario['client_config']['payload_config'] = _payload_type(use_generic_payload, req_size, resp_size)
-  scenario['server_config']['payload_config'] = _payload_type(use_generic_payload, req_size, resp_size)
 
   if unconstrained_client:
     outstanding_calls = outstanding if outstanding is not None else OUTSTANDING_REQUESTS[unconstrained_client]
diff --git a/tools/run_tests/run_microbenchmark.py b/tools/run_tests/run_microbenchmark.py
index 096d7d78ab2..e0c62c81a8d 100755
--- a/tools/run_tests/run_microbenchmark.py
+++ b/tools/run_tests/run_microbenchmark.py
@@ -126,15 +126,15 @@ for bm_name in sys.argv[1:]:
                            'bins/mutrace/%s' % bm_name,
                            '--benchmark_filter=^%s$' % line,
                            '--benchmark_min_time=20'])
-    with open('/tmp/bm.perf', 'w') as f:
+    with open('bm.perf', 'w') as f:
       f.write(subprocess.check_output(['sudo', 'perf', 'script']))
-    with open('/tmp/bm.folded', 'w') as f:
+    with open('bm.folded', 'w') as f:
       f.write(subprocess.check_output([
-          '%s/stackcollapse-perf.pl' % flamegraph_dir, '/tmp/bm.perf']))
+          '%s/stackcollapse-perf.pl' % flamegraph_dir, 'bm.perf']))
     link(line, '%s.svg' % fnize(line))
     with open('reports/%s.svg' % fnize(line), 'w') as f:
       f.write(subprocess.check_output([
-          '%s/flamegraph.pl' % flamegraph_dir, '/tmp/bm.folded']))
+          '%s/flamegraph.pl' % flamegraph_dir, 'bm.folded']))
 
 index_html += "</body>\n</html>\n"
 with open('reports/index.html', 'w') as f: