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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
// Adapted from donated nonius code.
#ifndef CATCH_EXECUTION_PLAN_HPP_INCLUDED
#define CATCH_EXECUTION_PLAN_HPP_INCLUDED
#include <catch2/interfaces/catch_interfaces_config.hpp>
#include <catch2/benchmark/catch_clock.hpp>
#include <catch2/benchmark/catch_environment.hpp>
#include <catch2/benchmark/detail/catch_benchmark_function.hpp>
#include <catch2/benchmark/detail/catch_repeat.hpp>
#include <catch2/benchmark/detail/catch_run_for_at_least.hpp>
#include <vector>
namespace Catch {
namespace Benchmark {
struct ExecutionPlan {
int iterations_per_sample;
FDuration estimated_duration;
Detail::BenchmarkFunction benchmark;
FDuration warmup_time;
int warmup_iterations;
template <typename Clock>
std::vector<FDuration> run(const IConfig &cfg, Environment env) const {
// warmup a bit
Detail::run_for_at_least<Clock>(
std::chrono::duration_cast<IDuration>( warmup_time ),
warmup_iterations,
Detail::repeat( []() { return Clock::now(); } )
);
std::vector<FDuration> times;
const auto num_samples = cfg.benchmarkSamples();
times.reserve( num_samples );
for ( size_t i = 0; i < num_samples; ++i ) {
Detail::ChronometerModel<Clock> model;
this->benchmark( Chronometer( model, iterations_per_sample ) );
auto sample_time = model.elapsed() - env.clock_cost.mean;
if ( sample_time < FDuration::zero() ) {
sample_time = FDuration::zero();
}
times.push_back(sample_time / iterations_per_sample);
}
return times;
}
};
} // namespace Benchmark
} // namespace Catch
#endif // CATCH_EXECUTION_PLAN_HPP_INCLUDED
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