1026944313
Testing a bunch of sizes has relatively little value. This reduces the number of benchmarks so we can run them on a regular basis. This saves ~8 minutes when running the benchmarks.
108 lines
4.1 KiB
C++
108 lines
4.1 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: c++03, c++11, c++14, c++17
|
|
|
|
#include <format>
|
|
|
|
#include <algorithm>
|
|
#include <array>
|
|
#include <iterator>
|
|
#include <list>
|
|
#include <span>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "benchmark/benchmark.h"
|
|
#include "make_string.h"
|
|
#include "test_macros.h"
|
|
|
|
#define CSTR(S) MAKE_CSTRING(CharT, S)
|
|
|
|
/*** Back inserter ***/
|
|
|
|
template <class Container>
|
|
static void BM_format_to_n_string_back_inserter(benchmark::State& state) {
|
|
using CharT = typename Container::value_type;
|
|
size_t size = state.range(0);
|
|
auto str = std::basic_string<CharT>(2 * size, CharT('*'));
|
|
|
|
for (auto _ : state) {
|
|
Container output;
|
|
benchmark::DoNotOptimize(std::format_to_n(std::back_inserter(output), size, CSTR("{}"), str));
|
|
}
|
|
state.SetBytesProcessed(state.iterations() * size * sizeof(CharT));
|
|
}
|
|
|
|
/*** Begin ***/
|
|
|
|
template <class Container>
|
|
static void BM_format_to_n_string_begin(benchmark::State& state) {
|
|
using CharT = typename Container::value_type;
|
|
size_t size = state.range(0);
|
|
auto str = std::basic_string<CharT>(2 * size, CharT('*'));
|
|
|
|
Container output(size, CharT('-'));
|
|
for (auto _ : state)
|
|
benchmark::DoNotOptimize(std::format_to_n(std::begin(output), size, CSTR("{}"), str));
|
|
|
|
state.SetBytesProcessed(state.iterations() * size * sizeof(CharT));
|
|
}
|
|
|
|
/*** Pointer ***/
|
|
|
|
template <class CharT>
|
|
static void BM_format_to_n_string_span(benchmark::State& state) {
|
|
size_t size = state.range(0);
|
|
auto str = std::basic_string<CharT>(2 * size, CharT('*'));
|
|
|
|
auto buffer = std::basic_string<CharT>(size, CharT('-'));
|
|
std::span<CharT> output{buffer};
|
|
for (auto _ : state)
|
|
benchmark::DoNotOptimize(std::format_to_n(std::begin(output), size, CSTR("{}"), str));
|
|
|
|
state.SetBytesProcessed(state.iterations() * size * sizeof(CharT));
|
|
}
|
|
|
|
template <class CharT>
|
|
static void BM_format_to_n_string_pointer(benchmark::State& state) {
|
|
size_t size = state.range(0);
|
|
auto str = std::basic_string<CharT>(2 * size, CharT('*'));
|
|
|
|
auto buffer = std::basic_string<CharT>(size, CharT('-'));
|
|
CharT* output = buffer.data();
|
|
for (auto _ : state)
|
|
benchmark::DoNotOptimize(std::format_to_n(output, size, CSTR("{}"), str));
|
|
|
|
state.SetBytesProcessed(state.iterations() * size * sizeof(CharT));
|
|
}
|
|
|
|
/*** Main ***/
|
|
|
|
BENCHMARK(BM_format_to_n_string_back_inserter<std::string>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_back_inserter<std::vector<char>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_back_inserter<std::list<char>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_begin<std::string>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_begin<std::vector<char>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_begin<std::list<char>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_span<char>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_pointer<char>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
|
|
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
|
|
BENCHMARK(BM_format_to_n_string_back_inserter<std::wstring>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_back_inserter<std::vector<wchar_t>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_back_inserter<std::list<wchar_t>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_begin<std::wstring>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_begin<std::vector<wchar_t>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_begin<std::list<wchar_t>>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_span<wchar_t>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
BENCHMARK(BM_format_to_n_string_pointer<wchar_t>)->Arg(1)->Arg(16384)->Arg(1048576);
|
|
#endif
|
|
|
|
BENCHMARK_MAIN();
|