| /* |
| * 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.util.UUID; |
| |
| import org.apache.logging.log4j.core.util.UuidUtil; |
| import org.openjdk.jmh.annotations.Benchmark; |
| |
| /** |
| * Compares random UUID generation with time-based UUID generation. |
| */ |
| // ============================== HOW TO RUN THIS TEST: ==================================== |
| // |
| // java -jar log4j-perf/target/benchmarks.jar ".*UuidGeneratorBenchmark.*" -f 1 -wi 5 -i 5 |
| // |
| // Usage help: |
| // java -jar log4j-perf/target/benchmarks.jar -help |
| // |
| public class UuidGeneratorBenchmark { |
| |
| @Benchmark |
| public UUID base() { |
| return null; |
| } |
| |
| @Benchmark |
| public UUID randomUUID() { |
| return UUID.randomUUID(); |
| } |
| |
| @Benchmark |
| public UUID timeBasedUUID() { |
| return UuidUtil.getTimeBasedUuid(); |
| } |
| } |