/* * Copyright (c) 2017, 2017, Oracle and/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 micro.benchmarks; import org.openjdk.jmh.annotations.Benchmark; import org.openjdk.jmh.annotations.Scope; import org.openjdk.jmh.annotations.State; import org.openjdk.jmh.annotations.Warmup; import org.graalvm.compiler.microbenchmarks.graal.GraalBenchmark; /** * Benchmarks cost of ArrayList. */ public class BoxingBenchmark extends GraalBenchmark { @State(Scope.Benchmark) public static class ThreadState { int value = 42; } @Benchmark @Warmup(iterations = 20) public Integer addBoxed(ThreadState state) { return Integer.valueOf(state.value); } @SuppressWarnings("unused") @Benchmark @Warmup(iterations = 20) public int doNothing(ThreadState state) { return 42; } }