Add proto2 dynamic message to benchmark.

benchmark/benchmark.cc

@@ -1,12 +1,14 @@
 
 #include <time.h>
 #include "google_messages.pb.h"
+#include <google/protobuf/dynamic_message.h>
 #include "test_util.h"
 #include "upb_context.h"
 #include "upb_msg.h"
 
 int main ()
 {
+  /* Initialize upb state, parse descriptor. */
   struct upb_context c;
   upb_context_init(&c);
   struct upb_string fds;
@@ -30,6 +32,7 @@ int main ()
     return 1;
   }
 
+  /* upb speed test, copying string. */
   struct upb_msg *m = e->ref.msg;
   struct upb_msg_parse_state s;
   void *data = upb_msgdata_new(m);
@@ -55,6 +58,7 @@ int main ()
   fprintf(stderr, "upb parsed %sB, ", eng(total, 3, false));
   fprintf(stderr, "%sB/s\n", eng(total/elapsed, 3, false));
 
+  /* upb speed test, referencing strings. */
   total = 0;
   before = clock();
   for(int i = 0; i < 2000; i++) {
@@ -73,9 +77,29 @@ int main ()
   upb_msgdata_free(data, m, true);
   upb_context_free(&c);
 
-  benchmarks::SpeedMessage2 msg;
+  /* proto2 speed test, dynamic type. */
   std::string stlstr(str.ptr, str.byte_len);
   upb_strfree(str);
+
+  google::protobuf::DynamicMessageFactory factory;
+  const google::protobuf::Message *dynamic_msg_prototype = factory.GetPrototype(benchmarks::SpeedMessage2::descriptor());
+  google::protobuf::Message *dynamic_msg = dynamic_msg_prototype->New();
+  total = 0;
+  before = clock();
+  for(int i = 0; i < 2000; i++) {
+    if(!dynamic_msg->ParseFromString(stlstr)) {
+      fprintf(stderr, "Error parsing with proto2.\n");
+      return 1;
+    }
+    total += str.byte_len;
+  }
+  delete dynamic_msg;
+  elapsed = ((double)clock() - before) / CLOCKS_PER_SEC;
+  fprintf(stderr, "proto2(dynamic) parsed %sB, ", eng(total, 3, false));
+  fprintf(stderr, "%sB/s\n", eng(total/elapsed, 3, false));
+
+  /* proto2 speed test, compiled-in type. */
+  benchmarks::SpeedMessage2 msg;
   total = 0;
   before = clock();
   for(int i = 0; i < 2000; i++) {