spdlog/example/bench.cpp

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/*************************************************************************/
/* spdlog - an extremely fast and easy to use c++11 logging library. */
/* Copyright (c) 2014 Gabi Melman. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
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//
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// bench.cpp : spdlog benchmarks
//
#include <iostream>
#include <memory>
#include <string>
#include <thread>
#include <atomic>
#include "spdlog/spdlog.h"
#include "spdlog/sinks/file_sinks.h"
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#include "spdlog/sinks/async_sink.h"
#include "spdlog/sinks/null_sink.h"
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#include "utils.h"
using namespace std;
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using namespace std::chrono;
using namespace spdlog;
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using namespace spdlog::sinks;
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using namespace utils;
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void bench(int howmany, std::shared_ptr<spdlog::logger> log);
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count);
int main(int argc, char* argv[])
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{
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int howmany = 250000;
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int threads = 4;
int flush_interval = 1000;
int file_size = 30 * 1024 * 1024;
int rotating_files = 5;
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try
{
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if(argc > 1)
howmany = atoi(argv[1]);
if (argc > 2)
threads = atoi(argv[2]);
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cout << "*******************************************************************************\n";
cout << "Single thread, " << format(howmany) << " iterations, flush every " << flush_interval << " lines"<< endl;
cout << "*******************************************************************************\n";
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auto rotating_st = spdlog::rotating_logger_st("rotating_st", "logs/rotating_st", file_size, rotating_files, flush_interval);
bench(howmany, rotating_st);
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auto daily_st = spdlog::daily_logger_st("daily_st", "logs/daily_st", flush_interval);
bench(howmany, daily_st);
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bench(howmany, spdlog::create<null_sink_st>("null_st"));
cout << "\n*******************************************************************************\n";
cout << threads << " threads sharing same logger, " << format(howmany) << " iterations, flush every " << flush_interval << " lines" << endl;
cout << "*******************************************************************************\n";
auto rotating_mt = spdlog::rotating_logger_mt("rotating_mt", "logs/rotating_mt", file_size, rotating_files, flush_interval);
bench_mt(howmany, rotating_mt, threads);
auto daily_mt = spdlog::daily_logger_mt("daily_mt", "logs/daily_mt", flush_interval);
bench_mt(howmany, daily_mt, threads);
bench_mt(howmany, spdlog::create<null_sink_mt>("null_mt"), threads);
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}
catch (std::exception &ex)
{
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std::cerr << "Error: " << ex.what() << std::endl;
perror("Last error");
}
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return 0;
}
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void bench(int howmany, std::shared_ptr<spdlog::logger> log)
{
cout << log->name() << "...\t\t" << flush;
auto start = system_clock::now();
for (auto i = 0; i < howmany; ++i)
{
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log->info("Hello logger: msg number ", i);
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}
auto delta = system_clock::now() - start;
auto delta_d = duration_cast<duration<double>> (delta).count();
cout << format(int(howmany / delta_d)) << "/sec" << endl;
}
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count)
{
cout << log->name() << "...\t\t" << flush;
std::atomic<int > msg_counter {0};
vector<thread> threads;
auto start = system_clock::now();
for (int t = 0; t < thread_count; ++t)
{
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threads.push_back(std::thread([&]()
{
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while (true)
{
int counter = ++msg_counter;
if (counter > howmany) break;
log->info("Hello logger: msg number ") << counter;
}
}));
}
for(auto &t:threads)
{
t.join();
};
auto delta = system_clock::now() - start;
auto delta_d = duration_cast<duration<double>> (delta).count();
cout << format(int(howmany / delta_d)) << "/sec" << endl;
}