spdlog/bench/formatter-bench.cpp

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//
// Copyright(c) 2018 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#include "benchmark/benchmark.h"
#include "spdlog/spdlog.h"
#include "spdlog/details/pattern_formatter.h"
void bench_scoped_pad(benchmark::State &state, size_t wrapped_size, spdlog::details::padding_info padinfo)
{
fmt::memory_buffer dest;
for (auto _ : state)
{
{
spdlog::details::scoped_pad p(wrapped_size, padinfo, dest);
benchmark::DoNotOptimize(p);
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dest.clear();
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}
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}
}
void bench_formatter(benchmark::State &state, std::string pattern)
{
auto formatter = spdlog::details::make_unique<spdlog::pattern_formatter>(pattern);
fmt::memory_buffer dest;
std::string logger_name = "logger-name";
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const char *text = "Hello. This is some message with length of 80 ";
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spdlog::details::log_msg msg(&logger_name, spdlog::level::info, text);
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for (auto _ : state)
{
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dest.clear();
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formatter->format(msg, dest);
benchmark::DoNotOptimize(dest);
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}
}
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void bench_formatters()
{
// basic patterns(single flag)
std::string all_flags = "+vtPnlLaAbBcCYDmdHIMSefFprRTXzEi%";
std::vector<std::string> basic_patterns;
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for (auto &flag : all_flags)
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{
auto pattern = std::string("%") + flag;
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benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern);
// pattern = std::string("%16") + flag;
// benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern);
//
// // bench center padding
// pattern = std::string("%=16") + flag;
// benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern);
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}
// complex patterns
std::vector<std::string> patterns = {
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"[%D %X] [%l] [%n] %v",
"[%Y-%m-%d %H:%M:%S.%e] [%l] [%n] %v",
"[%Y-%m-%d %H:%M:%S.%e] [%l] [%n] [%t] %v",
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};
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for (auto &pattern : patterns)
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{
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benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern)->Iterations(2500000);
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}
}
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int main(int argc, char *argv[])
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{
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spdlog::set_pattern("[%^%l%$] %v");
if(argc != 2)
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{
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spdlog::error("Usage: {} <pattern> (or \"all\" to bench all)", argv[0]);
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exit(1);
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}
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std::string pattern = argv[1];
if(pattern == "all")
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{
bench_formatters();
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}
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else
{
benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern);
}
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benchmark::Initialize(&argc, argv);
benchmark::RunSpecifiedBenchmarks();
}