Mercurial > hg > graal-compiler
view graal/com.oracle.graal.microbenchmarks/src/com/oracle/graal/microbenchmarks/graal/ArrayDuplicationBenchmark.java @ 23075:a741fb43974b
ArrayDuplicationBenchmark: exte4nd GraalBenchmark.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Tue, 24 Nov 2015 17:23:25 +0100 |
parents | 05183a084a08 |
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/* * Copyright (c) 2015, 2015, 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 com.oracle.graal.microbenchmarks.graal; import java.util.Arrays; import org.openjdk.jmh.annotations.Benchmark; import org.openjdk.jmh.annotations.Level; import org.openjdk.jmh.annotations.OperationsPerInvocation; import org.openjdk.jmh.annotations.Scope; import org.openjdk.jmh.annotations.Setup; import org.openjdk.jmh.annotations.State; import org.openjdk.jmh.annotations.TearDown; @State(Scope.Thread) public class ArrayDuplicationBenchmark extends GraalBenchmark { /** How large should the test-arrays be. */ private static final int TESTSIZE = 300; private Object[][] testObjectArray; private Object[] dummy; @Setup public void setup() { testObjectArray = new Object[TESTSIZE][]; for (int i = 0; i < TESTSIZE; i++) { testObjectArray[i] = new Object[20]; } } @Setup(Level.Iteration) public void iterationSetup() { dummy = new Object[TESTSIZE * 3]; } @TearDown(Level.Iteration) public void iterationTearDown() { dummy = null; } @Benchmark @OperationsPerInvocation(TESTSIZE) public Object[] normalArraycopy() { int j = 0; for (int i = 0; i < TESTSIZE; i++) { dummy[j++] = normalArraycopy(testObjectArray[i]); } return dummy; } public Object[] normalArraycopy(Object[] cache) { Object[] result = new Object[cache.length]; System.arraycopy(cache, 0, result, 0, result.length); return result; } @Benchmark @OperationsPerInvocation(TESTSIZE) public Object[] arraysCopyOf() { int j = 0; for (int i = 0; i < TESTSIZE; i++) { dummy[j++] = arraysCopyOf(testObjectArray[i]); } return dummy; } public Object[] arraysCopyOf(Object[] cache) { return Arrays.copyOf(cache, cache.length); } @Benchmark @OperationsPerInvocation(TESTSIZE) public Object[] cloneObjectArray() { int j = 0; for (int i = 0; i < TESTSIZE; i++) { dummy[j++] = arraysClone(testObjectArray[i]); } return dummy; } @SuppressWarnings("cast") public Object[] arraysClone(Object[] cache) { return (Object[]) cache.clone(); } }