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59 lines
2.2 KiB
59 lines
2.2 KiB
/*
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* Created by Joachim on 16/04/2019.
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* Adapted from donated nonius code.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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// Execution plan
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#ifndef TWOBLUECUBES_CATCH_EXECUTION_PLAN_HPP_INCLUDED
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#define TWOBLUECUBES_CATCH_EXECUTION_PLAN_HPP_INCLUDED
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#include "../catch_config.hpp"
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#include "catch_clock.hpp"
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#include "catch_environment.hpp"
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#include "detail/catch_benchmark_function.hpp"
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#include "detail/catch_repeat.hpp"
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#include "detail/catch_run_for_at_least.hpp"
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#include <algorithm>
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namespace Catch {
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namespace Benchmark {
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template <typename Duration>
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struct ExecutionPlan {
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int iterations_per_sample;
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Duration estimated_duration;
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Detail::BenchmarkFunction benchmark;
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Duration warmup_time;
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int warmup_iterations;
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template <typename Duration2>
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operator ExecutionPlan<Duration2>() const {
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return { iterations_per_sample, estimated_duration, benchmark, warmup_time, warmup_iterations };
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}
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template <typename Clock>
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std::vector<FloatDuration<Clock>> run(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const {
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// warmup a bit
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Detail::run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time), warmup_iterations, Detail::repeat(now<Clock>{}));
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std::vector<FloatDuration<Clock>> times;
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times.reserve(cfg.benchmarkSamples());
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std::generate_n(std::back_inserter(times), cfg.benchmarkSamples(), [this, env] {
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Detail::ChronometerModel<Clock> model;
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this->benchmark(Chronometer(model, iterations_per_sample));
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auto sample_time = model.elapsed() - env.clock_cost.mean;
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if (sample_time < FloatDuration<Clock>::zero()) sample_time = FloatDuration<Clock>::zero();
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return sample_time / iterations_per_sample;
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});
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return times;
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}
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};
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} // namespace Benchmark
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} // namespace Catch
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#endif // TWOBLUECUBES_CATCH_EXECUTION_PLAN_HPP_INCLUDED
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