a03a3a43bb
Co-authored-by: Vladimir Ivanov <vaivanov@openjdk.org> Reviewed-by: ecaspole, sviswanathan, mli
128 lines
3.9 KiB
Java
128 lines
3.9 KiB
Java
/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2020, Arm Limited. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.lang;
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import org.openjdk.jmh.annotations.Benchmark;
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import org.openjdk.jmh.annotations.BenchmarkMode;
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import org.openjdk.jmh.annotations.Fork;
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import org.openjdk.jmh.annotations.Measurement;
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import org.openjdk.jmh.annotations.Mode;
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import org.openjdk.jmh.annotations.OutputTimeUnit;
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import org.openjdk.jmh.annotations.Param;
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import org.openjdk.jmh.annotations.Scope;
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import org.openjdk.jmh.annotations.Setup;
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import org.openjdk.jmh.annotations.State;
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import org.openjdk.jmh.annotations.Warmup;
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import org.openjdk.jmh.results.Result;
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import org.openjdk.jmh.results.RunResult;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import org.openjdk.jmh.runner.options.TimeValue;
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import java.util.concurrent.TimeUnit;
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import java.util.Arrays;
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class MyClass {
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public int field1;
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public int field2;
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public int field3;
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public MyClass(int val) {
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field1 = val;
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field2 = val;
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field3 = val;
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}
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}
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@State(Scope.Thread)
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@BenchmarkMode(Mode.Throughput)
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@OutputTimeUnit(TimeUnit.MILLISECONDS)
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@Warmup(iterations = 10, time = 1)
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@Measurement(iterations = 5, time = 1)
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@Fork(value = 3)
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public class ArrayCopyObject {
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@Param({"31", "63", "127" , "2047" , "4095", "8191"}) private int size;
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private MyClass [] src;
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private MyClass [] dst;
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@Setup
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public void setup() {
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src = new MyClass[size];
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dst = new MyClass[size];
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for (int i = 0; i < src.length ; i++) {
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src[i] = new MyClass(i);
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dst[i] = new MyClass(0);
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}
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}
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@Benchmark
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public void disjoint_micro() {
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System.arraycopy(src, 0 , dst, 0 , size);
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}
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@Benchmark
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public void conjoint_micro() {
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System.arraycopy(src, 0 , src, 10 , size - 10 );
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}
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public static void main(String[] args) throws RunnerException {
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String [] base_opts =
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{ "-XX:+UnlockDiagnosticVMOptions ",
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"-XX:+IgnoreUnrecognizedVMOptions ",
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"-XX:UseAVX=3" };
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String [] opts_str1 = {"-XX:-UseCompressedOops "};
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String [] opts_str2 = {"-XX:+UseCompressedOops "};
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Options baseOpts = new OptionsBuilder()
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.include(ArrayCopyObject.class.getName())
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.warmupTime(TimeValue.seconds(30))
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.measurementTime(TimeValue.seconds(10))
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.warmupIterations(1)
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.measurementIterations(2)
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.jvmArgs(base_opts)
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.forks(1)
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.build();
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RunResult r1 = new Runner(new OptionsBuilder()
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.parent(baseOpts)
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.jvmArgs(opts_str1)
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.build()).runSingle();
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RunResult r2 = new Runner(new OptionsBuilder()
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.parent(baseOpts)
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.jvmArgs(opts_str2)
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.build()).runSingle();
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System.out.println(r1.getPrimaryResult().getScore() + r2.getPrimaryResult().getScore());
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}
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}
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