80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
// Copyright 2019 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "absl/profiling/internal/periodic_sampler.h"
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#include "benchmark/benchmark.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace profiling_internal {
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namespace {
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template <typename Sampler>
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void BM_Sample(Sampler* sampler, benchmark::State& state) {
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for (auto _ : state) {
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benchmark::DoNotOptimize(sampler);
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benchmark::DoNotOptimize(sampler->Sample());
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}
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}
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template <typename Sampler>
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void BM_SampleMinunumInlined(Sampler* sampler, benchmark::State& state) {
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for (auto _ : state) {
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benchmark::DoNotOptimize(sampler);
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if (ABSL_PREDICT_FALSE(sampler->SubtleMaybeSample())) {
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benchmark::DoNotOptimize(sampler->SubtleConfirmSample());
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}
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}
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}
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void BM_PeriodicSampler_TinySample(benchmark::State& state) {
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struct Tag {};
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PeriodicSampler<Tag, 10> sampler;
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BM_Sample(&sampler, state);
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}
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BENCHMARK(BM_PeriodicSampler_TinySample);
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void BM_PeriodicSampler_ShortSample(benchmark::State& state) {
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struct Tag {};
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PeriodicSampler<Tag, 1024> sampler;
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BM_Sample(&sampler, state);
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}
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BENCHMARK(BM_PeriodicSampler_ShortSample);
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void BM_PeriodicSampler_LongSample(benchmark::State& state) {
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struct Tag {};
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PeriodicSampler<Tag, 1024 * 1024> sampler;
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BM_Sample(&sampler, state);
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}
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BENCHMARK(BM_PeriodicSampler_LongSample);
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void BM_PeriodicSampler_LongSampleMinunumInlined(benchmark::State& state) {
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struct Tag {};
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PeriodicSampler<Tag, 1024 * 1024> sampler;
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BM_SampleMinunumInlined(&sampler, state);
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}
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BENCHMARK(BM_PeriodicSampler_LongSampleMinunumInlined);
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void BM_PeriodicSampler_Disabled(benchmark::State& state) {
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struct Tag {};
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PeriodicSampler<Tag, 0> sampler;
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BM_Sample(&sampler, state);
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}
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BENCHMARK(BM_PeriodicSampler_Disabled);
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} // namespace
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} // namespace profiling_internal
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ABSL_NAMESPACE_END
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} // namespace absl
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