spdlog/example/bench.cpp
2014-10-31 16:34:48 +02:00

111 lines
3.4 KiB
C++

//
// bench.cpp : spdlog benchmarks
//
#include <iostream>
#include <memory>
#include <string>
#include <thread>
#include <atomic>
#include "spdlog/spdlog.h"
#include "spdlog/sinks/file_sinks.h"
#include "spdlog/sinks/stdout_sinks.h"
#include "spdlog/sinks/null_sink.h"
#include "utils.h"
using namespace std;
using namespace std::chrono;
using namespace spdlog;
using namespace spdlog::sinks;
using namespace utils;
void bench(int howmany, std::shared_ptr<spdlog::logger> log)
{
cout << log->name() << ", " << format(howmany) << " iterations.." << endl;
auto start = system_clock::now();
for (auto i = 0; i < howmany; ++i)
{
log->info("Hello logger: msg number ") << i;
}
auto delta = system_clock::now() - start;
auto delta_d = duration_cast<duration<double>> (delta).count();
cout << "Delta:" << format(delta_d) << " seconds" << endl;
cout << "Rate:" << format(howmany / delta_d) << "/sec" << endl << endl;
}
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count)
{
cout << log->name() << ", " << format(howmany) << " iterations.." << endl;
std::atomic<int > msg_counter{0};
vector<thread> threads;
auto start = system_clock::now();
for (int t = 0; t < thread_count; ++t)
{
threads.push_back(std::thread([&]() {
while(msg_counter++ < howmany)
log->info("Hello logger: msg number ") << msg_counter;
}));
}
for(auto &t:threads)
{
t.join();
};
auto delta = system_clock::now() - start;
auto delta_d = duration_cast<duration<double>> (delta).count();
cout << "Delta:" << format(delta_d) << " seconds" << endl;
cout << "Rate:" << format(howmany / delta_d) << "/sec" << endl << endl;
}
int main(int argc, char* argv[])
{
try {
int howmany = argc <= 1 ? 100000 : atoi(argv[1]);
int threads = argc <= 2 ? 4 : atoi(argv[2]);
int flush_interval = 100;
cout << "*******************************************************************************\n";
cout << "Single threaded benchmarks. flush_interval = " << flush_interval << endl;
cout << "*******************************************************************************\n";
auto rotating_st = spdlog::rotating_logger_st("rotating_st", "logs/rotating_st", 1024 * 1024 * 5, 5, flush_interval);
bench(howmany, rotating_st);
auto daily_st = spdlog::daily_logger_st("daily_st", "logs/daily_st", flush_interval);
bench(howmany, daily_st);
bench(howmany, spdlog::create<null_sink_st>("null_st"));
cout << "*******************************************************************************\n";
cout << "Multi threaded benchmarks (" << threads << " threads), flush_interval = " << flush_interval << endl;
cout << "*******************************************************************************\n";
auto rotating_mt = spdlog::rotating_logger_mt("rotating_mt", "logs/rotating_mt", 1024 * 1024 * 5, 5, 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);
}
catch (std::exception &ex)
{
std::cerr << "Error: " << ex.what() << std::endl;
perror("Last error");
}
return 0;
}