Merge pull request #13284 from ncteisen/faster-microbenchmarks

Cut down microbenchmark time
diff --git a/tools/profiling/microbenchmarks/bm_diff/bm_main.py b/tools/profiling/microbenchmarks/bm_diff/bm_main.py
index 516d110..74b7174 100755
--- a/tools/profiling/microbenchmarks/bm_diff/bm_main.py
+++ b/tools/profiling/microbenchmarks/bm_diff/bm_main.py
@@ -78,7 +78,7 @@
     '-l',
     '--loops',
     type=int,
-    default=20,
+    default=10,
     help='Number of times to loops the benchmarks. More loops cuts down on noise'
   )
   argp.add_argument(