| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache license, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the license for the specific language governing permissions and |
| * limitations under the license. |
| */ |
| |
| package org.apache.logging.log4j.perf.jmh; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.PrintStream; |
| import java.util.concurrent.TimeUnit; |
| import java.util.logging.FileHandler; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Group; |
| import org.openjdk.jmh.annotations.Mode; |
| import org.openjdk.jmh.annotations.OutputTimeUnit; |
| import org.openjdk.jmh.annotations.Scope; |
| import org.openjdk.jmh.annotations.Setup; |
| import org.openjdk.jmh.annotations.State; |
| import org.openjdk.jmh.annotations.TearDown; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Benchmarks Log4j 2, Log4j 1, Logback and JUL using the DEBUG level which is enabled for this test. The configuration |
| * for each uses a FileAppender |
| */ |
| // HOW TO RUN THIS TEST |
| // java -jar log4j-perf/target/benchmarks.jar ".*OutputBenchmark.*" -f 1 -wi 10 -i 20 |
| // |
| // RUNNING THIS TEST WITH 4 THREADS: |
| // java -jar log4j-perf/target/benchmarks.jar ".*OutputBenchmark.*" -f 1 -wi 10 -i 20 -t 4 |
| @State(Scope.Thread) |
| public class OutputBenchmark { |
| public static final String MESSAGE = "This is a debug message"; |
| |
| Logger log4j2Logger; |
| |
| |
| @State(Scope.Group) |
| public static class Redirect { |
| PrintStream defaultStream = System.out; |
| |
| @Setup |
| public void setUp() throws Exception { |
| PrintStream ps = new PrintStream(new FileOutputStream("target/stdout.log")); |
| System.setOut(ps); |
| } |
| |
| @TearDown |
| public void tearDown() { |
| PrintStream ps = System.out; |
| System.setOut(defaultStream); |
| ps.close(); |
| } |
| } |
| |
| @Setup |
| public void setUp() throws Exception { |
| System.setProperty("log4j.configurationFile", "log4j2-perf3.xml"); |
| |
| deleteLogFiles(); |
| |
| log4j2Logger = LogManager.getLogger(OutputBenchmark.class); |
| } |
| |
| @TearDown |
| public void tearDown() { |
| System.clearProperty("log4j.configurationFile"); |
| |
| deleteLogFiles(); |
| } |
| |
| private void deleteLogFiles() { |
| final File outFile = new File("target/stdout.log"); |
| final File log4j2File = new File ("target/testlog4j2.log"); |
| log4j2File.delete(); |
| outFile.delete(); |
| } |
| |
| @BenchmarkMode(Mode.Throughput) |
| @OutputTimeUnit(TimeUnit.SECONDS) |
| @Group("console") |
| @Benchmark |
| public void console() { |
| System.out.println(MESSAGE); |
| } |
| |
| @BenchmarkMode(Mode.Throughput) |
| @OutputTimeUnit(TimeUnit.SECONDS) |
| @Group("file") |
| @Benchmark |
| public void log4j2File() { |
| log4j2Logger.debug(MESSAGE); |
| } |
| |
| @BenchmarkMode(Mode.Throughput) |
| @OutputTimeUnit(TimeUnit.SECONDS) |
| @Group("redirect") |
| @Benchmark |
| public void redirect(Redirect redirect) { |
| System.out.println(MESSAGE); |
| } |
| } |