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Diffstat (limited to 'third-party/benchmark/src/benchmark_runner.h')
-rw-r--r-- | third-party/benchmark/src/benchmark_runner.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/third-party/benchmark/src/benchmark_runner.h b/third-party/benchmark/src/benchmark_runner.h new file mode 100644 index 000000000000..8a855236b227 --- /dev/null +++ b/third-party/benchmark/src/benchmark_runner.h @@ -0,0 +1,106 @@ +// Copyright 2015 Google Inc. All rights reserved. +// +// 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. + +#ifndef BENCHMARK_RUNNER_H_ +#define BENCHMARK_RUNNER_H_ + +#include <thread> +#include <vector> + +#include "benchmark_api_internal.h" +#include "internal_macros.h" +#include "perf_counters.h" +#include "thread_manager.h" + +DECLARE_double(benchmark_min_time); + +DECLARE_int32(benchmark_repetitions); + +DECLARE_bool(benchmark_report_aggregates_only); + +DECLARE_bool(benchmark_display_aggregates_only); + +DECLARE_string(benchmark_perf_counters); + +namespace benchmark { + +namespace internal { + +extern MemoryManager* memory_manager; + +struct RunResults { + std::vector<BenchmarkReporter::Run> non_aggregates; + std::vector<BenchmarkReporter::Run> aggregates_only; + + bool display_report_aggregates_only = false; + bool file_report_aggregates_only = false; +}; + +class BenchmarkRunner { + public: + BenchmarkRunner(const benchmark::internal::BenchmarkInstance& b_, + BenchmarkReporter::PerFamilyRunReports* reports_for_family); + + int GetNumRepeats() const { return repeats; } + + bool HasRepeatsRemaining() const { + return GetNumRepeats() != num_repetitions_done; + } + + void DoOneRepetition(); + + RunResults&& GetResults(); + + BenchmarkReporter::PerFamilyRunReports* GetReportsForFamily() const { + return reports_for_family; + }; + + private: + RunResults run_results; + + const benchmark::internal::BenchmarkInstance& b; + BenchmarkReporter::PerFamilyRunReports* reports_for_family; + + const double min_time; + const int repeats; + const bool has_explicit_iteration_count; + + int num_repetitions_done = 0; + + std::vector<std::thread> pool; + + IterationCount iters; // preserved between repetitions! + // So only the first repetition has to find/calculate it, + // the other repetitions will just use that precomputed iteration count. + + PerfCountersMeasurement perf_counters_measurement; + PerfCountersMeasurement* const perf_counters_measurement_ptr; + + struct IterationResults { + internal::ThreadManager::Result results; + IterationCount iters; + double seconds; + }; + IterationResults DoNIterations(); + + IterationCount PredictNumItersNeeded(const IterationResults& i) const; + + bool ShouldReportIterationResults(const IterationResults& i) const; +}; + +} // namespace internal + +} // end namespace benchmark + +#endif // BENCHMARK_RUNNER_H_ |