spdlog/bench/spdlog-async.cpp

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#include <atomic>
#include <chrono>
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#include <cstdlib>
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#include <iostream>
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#include <thread>
#include <vector>
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#include "spdlog/async.h"
#include "spdlog/sinks/simple_file_sink.h"
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using namespace std;
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int main(int argc, char *argv[])
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{
using namespace std::chrono;
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using clock = steady_clock;
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int thread_count = 10;
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if (argc > 1)
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thread_count = std::atoi(argv[1]);
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int howmany = 1000000;
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spdlog::init_thread_pool(howmany, 1);
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auto logger = spdlog::create_async_logger<spdlog::sinks::simple_file_sink_mt>("file_logger", "logs/spdlog-bench-async.log", false);
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logger->set_pattern("[%Y-%m-%d %T.%F]: %L %t %v");
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std::cout << "To stop, press <Enter>" << std::endl;
std::atomic<bool> run{true};
std::thread stoper(std::thread([&run]() {
std::cin.get();
run = false;
}));
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while (run)
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{
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std::atomic<int> msg_counter{0};
std::vector<std::thread> threads;
auto start = clock::now();
for (int t = 0; t < thread_count; ++t)
{
threads.push_back(std::thread([&]() {
while (true)
{
int counter = ++msg_counter;
if (counter > howmany)
break;
logger->info("spdlog message #{}: This is some text for your pleasure", counter);
}
}));
}
for (auto &t : threads)
{
t.join();
}
duration<float> delta = clock::now() - start;
float deltaf = delta.count();
auto rate = howmany / deltaf;
std::cout << "Total: " << howmany << std::endl;
std::cout << "Threads: " << thread_count << std::endl;
std::cout << "Delta = " << std::fixed << deltaf << " seconds" << std::endl;
std::cout << "Rate = " << std::fixed << rate << "/sec" << std::endl;
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} // while
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stoper.join();
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return 0;
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}