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Diffstat (limited to 'include/internal/benchmark/detail/catch_analyse.hpp')
-rw-r--r-- | include/internal/benchmark/detail/catch_analyse.hpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/internal/benchmark/detail/catch_analyse.hpp b/include/internal/benchmark/detail/catch_analyse.hpp new file mode 100644 index 00000000..a3becbe4 --- /dev/null +++ b/include/internal/benchmark/detail/catch_analyse.hpp @@ -0,0 +1,78 @@ +/* + * Created by Joachim on 16/04/2019. + * Adapted from donated nonius code. + * + * Distributed under the Boost Software License, Version 1.0. (See accompanying + * file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + */ + + // Run and analyse one benchmark + +#ifndef TWOBLUECUBES_CATCH_DETAIL_ANALYSE_HPP_INCLUDED +#define TWOBLUECUBES_CATCH_DETAIL_ANALYSE_HPP_INCLUDED + +#include "../catch_clock.hpp" +#include "../catch_sample_analysis.hpp" +#include "catch_stats.hpp" + +#include <algorithm> +#include <iterator> +#include <vector> + +namespace Catch { + namespace Benchmark { + namespace Detail { + template <typename Duration, typename Iterator> + SampleAnalysis<Duration> analyse(const IConfig &cfg, Environment<Duration>, Iterator first, Iterator last) { + if (!cfg.benchmarkNoAnalysis()) { + std::vector<double> samples; + samples.reserve(last - first); + std::transform(first, last, std::back_inserter(samples), [](Duration d) { return d.count(); }); + + auto analysis = Catch::Benchmark::Detail::analyse_samples(cfg.benchmarkConfidenceInterval(), cfg.benchmarkResamples(), samples.begin(), samples.end()); + auto outliers = Catch::Benchmark::Detail::classify_outliers(samples.begin(), samples.end()); + + auto wrap_estimate = [](Estimate<double> e) { + return Estimate<Duration> { + Duration(e.point), + Duration(e.lower_bound), + Duration(e.upper_bound), + e.confidence_interval, + }; + }; + std::vector<Duration> samples2; + samples2.reserve(samples.size()); + std::transform(samples.begin(), samples.end(), std::back_inserter(samples2), [](double d) { return Duration(d); }); + return { + std::move(samples2), + wrap_estimate(analysis.mean), + wrap_estimate(analysis.standard_deviation), + outliers, + analysis.outlier_variance, + }; + } else { + std::vector<Duration> samples; + samples.reserve(last - first); + + Duration mean = Duration(0); + int i = 0; + for (auto it = first; it < last; ++it, ++i) { + samples.push_back(Duration(*it)); + mean += Duration(*it); + } + mean /= i; + + return { + std::move(samples), + Estimate<Duration>{mean, mean, mean, 0.0}, + Estimate<Duration>{Duration(0), Duration(0), Duration(0), 0.0}, + OutlierClassification{}, + 0.0 + }; + } + } + } // namespace Detail + } // namespace Benchmark +} // namespace Catch + +#endif // TWOBLUECUBES_CATCH_DETAIL_ANALYSE_HPP_INCLUDED |