spdlog/bench/formatter-bench.cpp
2018-11-21 16:02:02 +02:00

88 lines
2.5 KiB
C++

//
// 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);
dest.clear();
}
}
}
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";
const char *text = "Hello. This is some message with length of 80 ";
spdlog::details::log_msg msg(&logger_name, spdlog::level::info, text);
// formatter->format(msg, dest);
// printf("%s\n", fmt::to_string(dest).c_str());
for (auto _ : state)
{
dest.clear();
formatter->format(msg, dest);
benchmark::DoNotOptimize(dest);
}
}
void bench_formatters()
{
// basic patterns(single flag)
std::string all_flags = "+vtPnlLaAbBcCYDmdHIMSefFprRTXzEi%";
std::vector<std::string> basic_patterns;
for (auto &flag : all_flags)
{
auto pattern = std::string("%") + flag;
benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern);
// bench left padding
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);
}
// complex patterns
std::vector<std::string> patterns = {
"[%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",
};
for (auto &pattern : patterns)
{
benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern)->Iterations(2500000);
}
}
int main(int argc, char *argv[])
{
if (argc > 1) // bench given pattern
{
std::string pattern = argv[1];
benchmark::RegisterBenchmark(pattern.c_str(), bench_formatter, pattern);
}
else // bench all flags
{
bench_formatters();
}
benchmark::Initialize(&argc, argv);
benchmark::RunSpecifiedBenchmarks();
}