spdlog/bench/spdlog-null-async.cpp

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2016-09-17 18:51:53 -04:00
//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
//
// bench.cpp : spdlog benchmarks
//
#include <atomic>
#include <cstdlib> // EXIT_FAILURE
#include <iostream>
#include <memory>
#include <string>
#include <thread>
#include "spdlog/spdlog.h"
#include "spdlog/async_logger.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;
size_t bench_as(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count);
int main(int argc, char* argv[])
{
int queue_size = 1048576;
int howmany = 1000000;
int threads = 10;
int iters = 10;
try
{
if(argc > 1)
howmany = atoi(argv[1]);
if (argc > 2)
threads = atoi(argv[2]);
if (argc > 3)
queue_size = atoi(argv[3]);
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cout << "\n*******************************************************************************\n";
cout << "async logging.. " << threads << " threads sharing same logger, " << format(howmany) << " messages " << endl;
cout << "*******************************************************************************\n";
spdlog::set_async_mode(queue_size);
size_t total_rate = 0;
for(int i = 0; i < iters; ++i)
{
//auto as = spdlog::daily_logger_st("as", "logs/daily_async");
auto as = spdlog::create<null_sink_st>("async(null-sink)");
total_rate+= bench_as(howmany, as, threads);
spdlog::drop("async(null-sink)");
}
std::cout << endl;
std::cout << "Avg rate: " << format(total_rate/iters) << "/sec" <<std::endl;
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}
catch (std::exception &ex)
{
std::cerr << "Error: " << ex.what() << std::endl;
perror("Last error");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
//return rate/sec
size_t bench_as(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)
{
threads.push_back(std::thread([&]()
{
for(;;)
{
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();
auto per_sec = size_t(howmany / delta_d);
cout << format(per_sec) << "/sec" << endl;
return per_sec;
}