| /* |
| * 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.nogc; |
| |
| import java.util.Date; |
| |
| import static org.apache.logging.log4j.util.Unbox.*; |
| |
| /** |
| * Tests the classic Log4j2 components. |
| * <p> |
| * Run CLASSIC test (varargs, ParameterizedMessage, PatternLayout(%m)): |
| * java -Xms64M -Xmx64M -cp log4j-perf/target/benchmarks.jar -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime org.apache.logging.log4j.perf.nogc.Test Classic |
| * |
| * Run NOGC test (unrolled varargs, StringBuilderMessage, NoGcLayout(%m)): |
| * java -Xms64M -Xmx64M -cp log4j-perf/target/benchmarks.jar -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime org.apache.logging.log4j.perf.nogc.Test NoGC |
| * |
| * </p> |
| */ |
| public class Test { |
| private static final int COUNT = 10; |
| private static final int REPETITIONS = 1000000; |
| static long[] startTime = new long[COUNT]; |
| static long[] duration = new long[COUNT]; |
| static long[] checksums = new long[COUNT]; |
| |
| public static void main(final String[] args) throws Exception { |
| if ("Classic".equalsIgnoreCase(args[0])) { |
| final ClassicLogger logger = new ClassicLogger(); |
| runTestSuite(logger); |
| } else if ("NoGC".equalsIgnoreCase(args[0])) { |
| final NoGcLogger logger = new NoGcLogger(); |
| runTestSuite(logger); |
| } else { |
| throw new IllegalArgumentException("Specify either Classic or NoGC"); |
| // ClassicLogger classic = new ClassicLogger(); |
| // NoGcLogger nogc = new NoGcLogger(); |
| // doTestRunBoth(classic, nogc, REPETITIONS, 0); |
| } |
| reportResults(args[0]); |
| } |
| |
| private static void runTestSuite(final ClassicLogger logger) throws Exception { |
| for (int i = 0; i < 10; i++) { |
| doTestRun(logger, REPETITIONS, i); |
| Thread.sleep(100); |
| } |
| } |
| |
| private static void runTestSuite(final NoGcLogger logger) throws Exception { |
| for (int i = 0; i < 10; i++) { |
| doTestRun(logger, REPETITIONS, i); |
| Thread.sleep(100); |
| } |
| } |
| |
| private static void doTestRun(final NoGcLogger logger, final int repetitions, final int n) { |
| startTime[n] = System.currentTimeMillis(); |
| final long start = System.nanoTime(); |
| for (int i = 0; i < repetitions; i++) { |
| logger.log("Test message str={}, double={}, int={}, obj={}", "abc", box(i / 2.5), box(i), "XYX"); |
| //logger.log("Test message str={}, double={}, int={}, obj={}", "abc", (i / 2.5), (i), logger); |
| } |
| duration[n] = System.nanoTime() - start; |
| checksums[n] = logger.appender.checksum; |
| logger.appender.checksum = 0; |
| } |
| |
| private static void doTestRun(final ClassicLogger logger, final int repetitions, final int n) { |
| startTime[n] = System.currentTimeMillis(); |
| final long start = System.nanoTime(); |
| for (int i = 0; i < repetitions; i++) { |
| logger.log("Test message str={}, double={}, int={}, obj={}", "abc", i / 2.5, i, "XYX"); |
| } |
| duration[n] = System.nanoTime() - start; |
| checksums[n] = logger.appender.checksum; |
| logger.appender.checksum = 0; |
| } |
| |
| private static void doTestRunBoth(final ClassicLogger classic, final NoGcLogger nogc, final int repetitions, final int n) { |
| startTime[n] = System.currentTimeMillis(); |
| final long start = System.nanoTime(); |
| for (int i = 0; i < repetitions; i++) { |
| classic.log("Test message str={}, double={}, int={}, obj={}", "abc", i / 2.5, i, "XYX"); |
| nogc.log("Test message str={}, double={}, int={}, obj={}", "abc", box(i / 2.5), box(i), "XYX"); |
| |
| if (classic.appender.checksum != nogc.appender.checksum) { |
| throw new IllegalStateException(); |
| } |
| } |
| duration[n] = System.nanoTime() - start; |
| } |
| |
| private static void reportResults(final String type) { |
| for (int i = 0; i < COUNT; i++) { |
| System.out.printf("%s[%d] (%3$tF %3$tT.%3$tL) took %4$,d ns. CHECK=%5$s%n", type, i, |
| new Date(startTime[i]), duration[i], Long.toHexString(checksums[i])); |
| } |
| } |
| } |