/* * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package org.openjdk.bench.java.lang; import org.openjdk.jmh.annotations.*; import java.util.concurrent.TimeUnit; @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) @Fork(3) @State(Scope.Benchmark) public class ThreadSleep { @Param({"0", "1", "10", "100", "1000", "10000", "100000", "1000000", "10000000", "100000000", "1000000000"}) private int sleep; private long millis; private int nanos; @Setup public void setup() { millis = TimeUnit.NANOSECONDS.toMillis(sleep); nanos = (int)(sleep - TimeUnit.MILLISECONDS.toNanos(millis)); } @Benchmark public void millis() throws InterruptedException { Thread.sleep(millis); } @Benchmark public void millisNanos() throws InterruptedException { Thread.sleep(millis, nanos); } }