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https://github.com/KjellKod/g3log.git
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73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
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/* *************************************************
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// * Filename: g2log-main_mean.cpp
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// * Created: 2011 by Kjell Hedström
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// *
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// * PUBLIC DOMAIN and Not copy-writed
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// * ********************************************* */
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// through CMakeLists.txt #define of GOOGLE_GLOG_PERFORMANCE and G2LOG_PERFORMANCE
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#include "performance.h"
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#include <thread>
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#if defined(G2LOG_PERFORMANCE)
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const std::string title = "G2LOG";
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#elif defined(GOOGLE_GLOG_PERFORMANCE)
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const std::string title = "GOOGLE__GLOG";
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#else
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const std::string title = not_defined_this_will_be_compiler_error;
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#endif
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const std::string g_prefix_log_name = title + "-performance-2threads-MEAN_LOG";
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const std::string g_measurement_dump= "/tmp/" + g_prefix_log_name + "_RESULT.txt";
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const std::string g_path = "/tmp/";
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using namespace g2_test;
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int main(int argc, char** argv)
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{
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std::ostringstream oss;
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oss << "\n\n" << title << " performance 2 threads MEAN times\n";
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oss << "Each thread running #: " << g_loop << " * " << g_iterations << " iterations of log entries" << std::endl; // worst mean case is about 10us per log entry
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const size_t xtra_margin = 2;
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oss << "*** It can take som time. Please wait: Approximate maximum wait time is: " << (long long) (g_iterations * 10 * xtra_margin / 1000000 ) << " seconds" << std::endl;
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writeTextToFile(g_measurement_dump, oss.str(), kAppend);
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oss.str(""); // clear the stream
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#if defined(G2LOG_PERFORMANCE)
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LogWorker* logger = new LogWorker(g_prefix_log_name, g_path);
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g2::initializeLogging(logger);
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#elif defined(GOOGLE_GLOG_PERFORMANCE)
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google::InitGoogleLogging(argv[0]);
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#endif
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auto start_time = std::chrono::steady_clock::now();
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// running both threads
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std::thread t1(doLogWrites, title + "_T1");
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std::thread t2(doLogWrites, title + "_T2");
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t1.join();
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t2.join();
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auto application_end_time = std::chrono::steady_clock::now();
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#if defined(G2LOG_PERFORMANCE)
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delete logger; // will flush anything in the queue to file
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#elif defined(GOOGLE_GLOG_PERFORMANCE)
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google::ShutdownGoogleLogging();
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#endif
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auto worker_end_time = std::chrono::steady_clock::now();
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auto application_time_us = std::chrono::duration_cast<microsecond>(application_end_time - start_time).count();
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auto total_time_us = std::chrono::duration_cast<microsecond>(worker_end_time - start_time).count();
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oss << "\n" << g_iterations << " log entries took: [" << total_time_us / 1000000 << " s] to write to disk"<< std::endl;
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oss << "[Application(2threads):\t\t:" << application_time_us/1000 << " ms]" << std::endl;
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oss << "[Background thread to finish\t:" << total_time_us/1000 << " ms]" << std::endl;
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oss << "\nAverage time per log entry:" << std::endl;
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oss << "[Application: " << application_time_us/g_iterations << " us]" << std::endl;
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oss << "[Background+Application: " << total_time_us/g_iterations << " us]" << std::endl;
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writeTextToFile(g_measurement_dump,oss.str(), kAppend);
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std::cout << "Result can be found at:" << g_measurement_dump << std::endl;
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return 0;
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}
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