diff options
| author |  Craig Tiller <ctiller@google.com> | 2017-03-14 21:10:42 -0700 |
|---|---|---|
| committer | Craig Tiller <ctiller@google.com> | 2017-03-14 21:10:42 -0700 |
| commit | e1523e95c102a3eec48fef34350bca206c0a6546 (patch) | |
| tree | 277f14b9b083029437ac892ba528bef59c2ade0a /test/cpp/microbenchmarks | |
| parent | e24e91309a2ed66e5a188e0b4e0530e495bb413c (diff) | |
Track calls to gpr_now()
Diffstat (limited to 'test/cpp/microbenchmarks')
| -rw-r--r-- | test/cpp/microbenchmarks/bm_call_create.cc | 2 | ||||
| -rw-r--r-- | test/cpp/microbenchmarks/helpers.cc | 4 | ||||
| -rw-r--r-- | test/cpp/microbenchmarks/helpers.h | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/test/cpp/microbenchmarks/bm_call_create.cc b/test/cpp/microbenchmarks/bm_call_create.cc index 014e2b96b5..146f8e6bad 100644 --- a/test/cpp/microbenchmarks/bm_call_create.cc +++ b/test/cpp/microbenchmarks/bm_call_create.cc @@ -66,10 +66,12 @@ auto &force_library_initialization = Library::get(); void BM_Zalloc(benchmark::State &state) { // speed of light for call creation is zalloc, so benchmark a few interesting // sizes + TrackCounters track_counters; size_t sz = state.range(0); while (state.KeepRunning()) { gpr_free(gpr_zalloc(sz)); } + track_counters.Finish(state); } BENCHMARK(BM_Zalloc) ->Arg(64) diff --git a/test/cpp/microbenchmarks/helpers.cc b/test/cpp/microbenchmarks/helpers.cc index d277c5984c..6550742453 100644 --- a/test/cpp/microbenchmarks/helpers.cc +++ b/test/cpp/microbenchmarks/helpers.cc @@ -57,6 +57,10 @@ void TrackCounters::AddToLabel(std::ostream &out, benchmark::State &state) { << ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_add) - atm_add_at_start_) / (double)state.iterations()) + << " nows/iter:" + << ((double)(gpr_atm_no_barrier_load(&gpr_now_call_count) - + now_calls_at_start_) / + (double)state.iterations()) << " allocs/iter:" << ((double)(counters_at_end.total_allocs_absolute - counters_at_start_.total_allocs_absolute) / diff --git a/test/cpp/microbenchmarks/helpers.h b/test/cpp/microbenchmarks/helpers.h index f44b7cf83a..af401dd7bb 100644 --- a/test/cpp/microbenchmarks/helpers.h +++ b/test/cpp/microbenchmarks/helpers.h @@ -72,6 +72,7 @@ class Library { extern "C" gpr_atm gpr_mu_locks; extern "C" gpr_atm gpr_counter_atm_cas; extern "C" gpr_atm gpr_counter_atm_add; +extern "C" gpr_atm gpr_now_call_count; #endif class TrackCounters { @@ -86,6 +87,8 @@ class TrackCounters { gpr_atm_no_barrier_load(&gpr_counter_atm_cas); const size_t atm_add_at_start_ = gpr_atm_no_barrier_load(&gpr_counter_atm_add); + const size_t now_calls_at_start_ = + gpr_atm_no_barrier_load(&gpr_now_call_count); grpc_memory_counters counters_at_start_ = grpc_memory_counters_snapshot(); #endif }; |