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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <string.h>
#include "test/cpp/microbenchmarks/helpers.h"
void TrackCounters::Finish(benchmark::State& state) {
std::ostringstream out;
for (const auto& l : labels_) {
out << l << ' ';
}
AddToLabel(out, state);
std::string label = out.str();
if (label.length() && label[0] == ' ') {
label = label.substr(1);
}
state.SetLabel(label.c_str());
}
void TrackCounters::AddLabel(const grpc::string& label) {
labels_.push_back(label);
}
void TrackCounters::AddToLabel(std::ostream& out, benchmark::State& state) {
grpc_stats_data stats_end;
grpc_stats_collect(&stats_end);
grpc_stats_data stats;
grpc_stats_diff(&stats_end, &stats_begin_, &stats);
for (int i = 0; i < GRPC_STATS_COUNTER_COUNT; i++) {
out << " " << grpc_stats_counter_name[i] << "/iter:"
<< (static_cast<double>(stats.counters[i]) /
static_cast<double>(state.iterations()));
}
for (int i = 0; i < GRPC_STATS_HISTOGRAM_COUNT; i++) {
out << " " << grpc_stats_histogram_name[i] << "-median:"
<< grpc_stats_histo_percentile(&stats, (grpc_stats_histograms)i, 50.0)
<< " " << grpc_stats_histogram_name[i] << "-99p:"
<< grpc_stats_histo_percentile(&stats, (grpc_stats_histograms)i, 99.0);
}
#ifdef GPR_LOW_LEVEL_COUNTERS
grpc_memory_counters counters_at_end = grpc_memory_counters_snapshot();
out << " locks/iter:"
<< ((double)(gpr_atm_no_barrier_load(&gpr_mu_locks) -
mu_locks_at_start_) /
(double)state.iterations())
<< " atm_cas/iter:"
<< ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_cas) -
atm_cas_at_start_) /
(double)state.iterations())
<< " atm_add/iter:"
<< ((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) /
(double)state.iterations());
#endif
}
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