| /* |
| * 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.util.Arrays; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Level; |
| 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.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import ch.qos.logback.core.spi.LifeCycle; |
| |
| /** |
| * Tests Logback Async Appender performance. |
| */ |
| // ============================== HOW TO RUN THIS TEST: ==================================== |
| // |
| // single thread: |
| // java -jar log4j-perf/target/benchmarks.jar ".*Async.*Benchmark.*" -f 1 -wi 5 -i 5 |
| // |
| // multiple threads (for example, 4 threads): |
| // java -jar log4j-perf/target/benchmarks.jar ".*Async.*Benchmark.*" -f 1 -wi 5 -i 5 -t 4 -si true |
| // |
| // Usage help: |
| // java -jar log4j-perf/target/benchmarks.jar -help |
| // |
| public class AsyncAppenderLogbackBenchmark { |
| |
| final static char[] CHARS = new char[500]; |
| static { |
| Arrays.fill(CHARS, 'a'); |
| } |
| final static String TEST = new String(CHARS); |
| |
| @State(Scope.Benchmark) |
| public static class NormalState { |
| Logger logger; |
| |
| @Setup(Level.Trial) |
| public void up() { |
| System.setProperty("logback.configurationFile", "perf-logback-async.xml"); |
| logger = (Logger) LoggerFactory.getLogger(getClass()); |
| } |
| |
| @TearDown(Level.Trial) |
| public void down() { |
| ((LifeCycle) LoggerFactory.getILoggerFactory()).stop(); |
| new File("perftest.log").delete(); |
| } |
| } |
| |
| @Benchmark |
| @BenchmarkMode(Mode.Throughput) |
| @OutputTimeUnit(TimeUnit.SECONDS) |
| public boolean throughputBaseline(final NormalState e) { |
| return e.logger.isInfoEnabled(); |
| } |
| |
| @Benchmark |
| @BenchmarkMode(Mode.Throughput) |
| @OutputTimeUnit(TimeUnit.SECONDS) |
| public void throughput(final NormalState e) { |
| e.logger.info(TEST); |
| } |
| |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public boolean latencyBaseline(final NormalState e) { |
| return e.logger.isInfoEnabled(); |
| } |
| |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public void latency(final NormalState e) { |
| e.logger.info(TEST); |
| } |
| } |