spdlog/bench/spdlog-async.cpp

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
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#include "spdlog/spdlog.h"
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#include <atomic>
#include <chrono>
#include <cstdlib>
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#include <iostream>
#include <thread>
#include <vector>
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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 = ::atoi(argv[1]);
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int howmany = 1000000;
spdlog::set_async_mode(1048576);
auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("file_logger", "logs/spdlog-bench-async.log", false);
logger->set_pattern("[%Y-%b-%d %T.%e]: %f");
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std::atomic<int> msg_counter{0};
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vector<thread> threads;
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auto start = 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;
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if (counter > howmany)
break;
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logger->info("spdlog message #{}: This is some text for your pleasure", counter);
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}
}));
}
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for (auto &t : threads)
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{
t.join();
}
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duration<float> delta = clock::now() - start;
float deltaf = delta.count();
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auto rate = howmany / deltaf;
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cout << "Total: " << howmany << std::endl;
cout << "Threads: " << thread_count << std::endl;
std::cout << "Delta = " << deltaf << " seconds" << std::endl;
std::cout << "Rate = " << rate << "/sec" << std::endl;
}