diff --git a/third_party/protobuf b/third_party/protobuf
index 4a0dd03e52e..593e917c176 160000
--- a/third_party/protobuf
+++ b/third_party/protobuf
@@ -1 +1 @@
-Subproject commit 4a0dd03e52e09332c8fd0f8f26a8e0ae9f911182
+Subproject commit 593e917c176b5bc5aafa57bf9f6030d749d91cd5
diff --git a/tools/profiling/microbenchmarks/bm_diff.py b/tools/profiling/microbenchmarks/bm_diff.py
index ba0c225f6cc..2f1262f60ea 100755
--- a/tools/profiling/microbenchmarks/bm_diff.py
+++ b/tools/profiling/microbenchmarks/bm_diff.py
@@ -56,6 +56,10 @@ _INTERESTING = (
   'writes_per_iteration',
   'atm_cas_per_iteration',
   'atm_add_per_iteration',
+  'cli_transport_stalls_per_iteration',
+  'cli_stream_stalls_per_iteration',
+  'svr_transport_stalls_per_iteration',
+  'svr_stream_stalls_per_iteration'
 )
 
 def changed_ratio(n, o):