Added: g3log, log4cplus, log4cpp, p7. Changes: boost, easylogging, g2log, glog, spdlog.

bench/log4cpp-bench-mt.cpp

@@ -0,0 +1,74 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#include <atomic>
+#include <chrono>
+#include <iostream>
+#include <memory>
+#include <thread>
+#include <vector>
+
+#include "log4cpp/Category.hh"
+#include "log4cpp/Appender.hh"
+#include "log4cpp/FileAppender.hh"
+#include "log4cpp/Layout.hh"
+#include "log4cpp/BasicLayout.hh"
+#include "log4cpp/Priority.hh"
+#include "log4cpp/PatternLayout.hh"
+
+int main(int argc, char * argv[])
+{
+    using namespace std::chrono;
+    using clock = steady_clock;
+
+    int thread_count = 10;
+    if (argc > 1)
+        thread_count = std::atoi(argv[1]);
+
+    int howmany = 1000000;
+
+    log4cpp::Appender *appender  = new log4cpp::FileAppender("default", "logs/log4cpp-bench-mt.log");
+    log4cpp::PatternLayout *layout = new log4cpp::PatternLayout();
+    layout->setConversionPattern("{%Y-%m-%d %H:%M:%S.%l}: %p - %m %n");
+    appender->setLayout(layout);
+
+    log4cpp::Category& root = log4cpp::Category::getRoot();
+    root.addAppender(appender);
+    root.setPriority(log4cpp::Priority::INFO);
+
+    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;
+                root << log4cpp::Priority::INFO << "log4cpp message #" << counter << ": This is some text for your pleasure";
+            }
+        }));
+    }
+
+    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 = " << deltaf << " seconds" << std::endl;
+    std::cout << "Rate = " << rate << "/sec" << std::endl;
+
+    root.shutdown();
+    return 0;
+}