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109 lines
2.7 KiB
109 lines
2.7 KiB
/*
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* Copyright 2019 Michael Tesch. All rights reserved.
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*
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* author(s): michael tesch (tesch1@gmail.com)
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*
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*/
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/*! \file bench_fmt.cpp
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* \brief benchmarking for formatting
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*
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* To disable freq scaling:
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* cpupower frequency-set --governor performance
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* to re-enable freq scaling:
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* cpupower frequency-set --governor ondemand
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*/
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#include <benchmark/benchmark.h>
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#include <complex>
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#define CPPDUALS_LIBFMT
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#define CPPDUALS_LIBFMT_COMPLEX
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#include "duals/dual"
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template <class T> void B_fmt_1(benchmark::State& state) {
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T c(3.4);
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for (auto _ : state) {
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std::string s;
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benchmark::DoNotOptimize(s = fmt::format("{}", c));
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}
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}
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template <class T> void B_ios_1(benchmark::State& state) {
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T c(3.4);
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for (auto _ : state) {
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std::string s;
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std::stringstream ss;
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ss << c;
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s = ss.str();
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}
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}
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template <class T> void B_fmt(benchmark::State& state) {
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T c(3.4, 5.6);
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for (auto _ : state) {
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std::string s;
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benchmark::DoNotOptimize(s = fmt::format("{}", c));
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}
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}
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template <class T> void B_fmt_g(benchmark::State& state) {
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T c(3.4, 5.6);
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for (auto _ : state) {
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std::string s;
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benchmark::DoNotOptimize(s = fmt::format("{:g}", c));
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}
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}
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template <class T> void B_fmt_star_g(benchmark::State& state) {
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T c(3.4, 5.6);
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for (auto _ : state) {
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std::string s;
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benchmark::DoNotOptimize(s = fmt::format("{:*g}", c));
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}
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}
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template <class T> void B_fmt_comma_g(benchmark::State& state) {
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T c(3.4, 5.6);
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for (auto _ : state) {
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std::string s;
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benchmark::DoNotOptimize(s = fmt::format("{:,g}", c));
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}
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}
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template <class T> void B_ios(benchmark::State& state) {
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T c(3.4, 5.6);
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for (auto _ : state) {
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std::string s;
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std::stringstream ss;
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ss << c;
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s = ss.str();
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}
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}
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BENCHMARK_TEMPLATE(B_fmt_1, float);
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BENCHMARK_TEMPLATE(B_fmt_1, double);
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BENCHMARK_TEMPLATE(B_ios_1, float);
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BENCHMARK_TEMPLATE(B_ios_1, double);
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BENCHMARK_TEMPLATE(B_fmt_g, std::complex<float>);
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BENCHMARK_TEMPLATE(B_fmt_star_g, std::complex<float>);
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BENCHMARK_TEMPLATE(B_fmt_comma_g, std::complex<float>);
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BENCHMARK_TEMPLATE(B_fmt, std::complex<float>);
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BENCHMARK_TEMPLATE(B_fmt, std::complex<double>);
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BENCHMARK_TEMPLATE(B_fmt, duals::dual<float>);
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BENCHMARK_TEMPLATE(B_fmt, duals::dual<double>);
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BENCHMARK_TEMPLATE(B_ios, std::complex<float>);
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BENCHMARK_TEMPLATE(B_ios, std::complex<double>);
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BENCHMARK_TEMPLATE(B_ios, duals::dual<float>);
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BENCHMARK_TEMPLATE(B_ios, duals::dual<double>);
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#define QUOTE(...) STRFY(__VA_ARGS__)
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#define STRFY(...) #__VA_ARGS__
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int main(int argc, char** argv)
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{
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std::ios::sync_with_stdio(false);
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std::cout << "OPT_FLAGS=" << QUOTE(OPT_FLAGS) << "\n";
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::benchmark::Initialize(&argc, argv);
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::benchmark::RunSpecifiedBenchmarks();
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}
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