spdlog/bench/spdlog-bench-mt-async.cpp

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#include <thread>
#include <vector>
#include <atomic>
#include "spdlog/spdlog.h"
#include <iostream>
using namespace std;
int main(int argc, char* argv[])
{
int thread_count = 10;
if(argc > 1)
thread_count = atoi(argv[1]);
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int howmany = 1048576;
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namespace spd = spdlog;
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spd::set_async_mode(howmany);
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///Create a file rotating logger with 5mb size max and 3 rotated files
auto logger = spd::rotating_logger_mt("file_logger", "logs/spd-sample", 10 *1024 * 1024 , 5);
logger->set_pattern("[%Y-%b-%d %T.%e]: %v");
std::atomic<int > msg_counter {0};
vector<thread> threads;
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 #" << counter << ": This is some text for your pleasure";
}
}));
}
for(auto &t:threads)
{
t.join();
};
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//because spdlog async logger waits for the back thread logger to finish all messages upon destrcuting,
//and we want to measure only the time it took to push those messages to the backthread..
abort();
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}