updated benchmarks

README.md

@@ -37,10 +37,12 @@ Just copy the files to your build tree and use a C++11 compiler
 
 Below are some [benchmarks](bench) comparing the time needed to log 1,000,000 lines to file under Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz:
 
-|threads|boost log|glog|g2log|spdlog|
+|threads|boost log|glog|g2log|spdlog|spdlog<sup>async mode</sup>|
 |-------|:-------:|:-----:|------:|------:|
-|1|4.223s|1.084s|3.104s|0.998s|
+|1|4.430s|1.115s|3.227s|0.940s|1.574s
-|10|14.141s|4.204s|3.412s|0.987s|
+|10|13.985s|2.027s|3.476s|3.822s|1.972
+
+
 
 
 ## Usage Example

bench/results.txt

@@ -0,0 +1,80 @@
+Running benchmakrs (all with 1000,000 writes to the logs folder
+
+boost-bench (single thread)..
+
+real	0m4.430s
+user	0m4.359s
+sys	0m0.072s
+
+
+glog-bench (single thread)..
+
+real	0m1.115s
+user	0m0.997s
+sys	0m0.117s
+
+
+g2log-bench (single thread)..
+
+Exiting, log location: logs/g2log-bench.g2log.20141124-232519.log
+
+real	0m3.277s
+user	0m4.189s
+sys	0m1.021s
+
+
+spdlog-bench (single thread)
+
+real	0m0.940s
+user	0m0.892s
+sys	0m0.048s
+
+
+------------------------------------
+Multithreaded benchmarks..
+------------------------------------
+boost-bench-mt (10 threads, single logger)..
+
+real	0m13.985s
+user	0m35.045s
+sys	0m7.196s
+
+
+glog-bench-mt (10 threads, single logger)..
+
+real	0m2.027s
+user	0m5.552s
+sys	0m6.223s
+
+
+g2log-bench-mt (10 threads, single logger)..
+
+Exiting, log location: logs/g2log-bench-mt.g2log.20141124-232551.log
+
+real	0m3.476s
+user	0m7.649s
+sys	0m1.619s
+
+
+spdlog-bench-mt (10 threads, single logger)..
+
+real	0m3.822s
+user	0m14.233s
+sys	0m6.117s
+
+
+------------------------------------
+Async  benchmarks..
+------------------------------------
+spdlog-bench-async (single thread)..
+
+real	0m1.574s
+user	0m2.613s
+sys	0m0.405s
+
+
+spdlog-bench-mt-async (10 threads, single logger)..
+
+real	0m1.972s
+user	0m3.965s
+sys	0m2.747s

bench/run_all.sh

@@ -24,7 +24,9 @@ time ./spdlog-bench
 echo
 echo
 sleep 3
-
+echo "------------------------------------"
+echo "Multithreaded benchmarks.."
+echo "------------------------------------"
 echo "boost-bench-mt (10 threads, single logger)"..
 time ./boost-bench-mt
 echo
@@ -49,6 +51,16 @@ echo
 echo
 sleep 3
 
+echo "------------------------------------"
+echo "Async  benchmarks.."
+echo "------------------------------------"
+
+echo "spdlog-bench-async (single thread)"..
+time ./spdlog-bench-async
+echo
+echo
+sleep 3
+
 echo "spdlog-bench-mt-async (10 threads, single logger)"..
 time ./spdlog-bench-mt-async
 

bench/spdlog-bench-async.cpp

@@ -6,7 +6,7 @@ int main(int, char* [])
 {
     int howmany = 1000000;
     namespace spd = spdlog;
-   	spd::set_async_mode(howmany, std::chrono::seconds(0));
+   	spd::set_async_mode(2500, std::chrono::seconds(0));
     ///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);
 

bench/spdlog-bench-mt-async.cpp

@@ -17,7 +17,7 @@ int main(int argc, char* argv[])
     int howmany = 1000000;
 
     namespace spd = spdlog;
-	spd::set_async_mode(howmany, std::chrono::seconds(0));
+	spd::set_async_mode(2500, std::chrono::seconds(0));
     ///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);
 

example/bench.cpp

@@ -52,7 +52,7 @@ int main(int argc, char* argv[])
 
     int howmany = 1000000;
     int threads = 10;
-    int flush_interval = 1000;
+    int flush_interval = 0;
     int file_size = 30 * 1024 * 1024;
     int rotating_files = 5;
 
@@ -63,7 +63,7 @@ int main(int argc, char* argv[])
             howmany = atoi(argv[1]);
         if (argc > 2)
             threads =   atoi(argv[2]);
-	
+		/*
         cout << "*******************************************************************************\n";
         cout << "Single thread, " << format(howmany)  << " iterations, flush every " << flush_interval << " lines"<< endl;
         cout << "*******************************************************************************\n";
@@ -88,14 +88,13 @@ int main(int argc, char* argv[])
 		
         cout << "\n*******************************************************************************\n";
         cout << "async logging.. " << threads << " threads sharing same logger, " << format(howmany) << " iterations, flush every " << flush_interval << " lines" << endl;
-        cout << "*******************************************************************************\n";
+e	        cout << "*******************************************************************************\n";
-
+		*/
-        spdlog::set_async_mode(howmany);
+		
-        auto rotating_st_async = spdlog::rotating_logger_st("rotating_async", "logs/rotating_async", file_size, rotating_files, flush_interval);
+        spdlog::set_async_mode(2500);
-        bench(howmany, rotating_st_async);
         auto daily_st_async = spdlog::daily_logger_st("daily_async", "logs/daily_async", flush_interval);
-        bench(howmany, daily_st_async);
+        bench_mt(howmany, daily_st_async, threads);
-        bench(howmany, spdlog::create<null_sink_st>("null_async"));
+
 
         spdlog::stop();