103 lines
4.1 KiB
Java
103 lines
4.1 KiB
Java
/*
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* Copyright (c) 2014, 2022, Oracle and/or its affiliates. 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.util;
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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.Scope;
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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 java.util.Arrays;
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import java.util.concurrent.TimeUnit;
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/**
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* Tests for Array.equals() with 80 entry arrays differing at beginning, middle, or end.
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*/
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.NANOSECONDS)
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@State(Scope.Thread)
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@Warmup(iterations = 4, time = 2)
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@Measurement(iterations = 4, time = 2)
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@Fork(value = 3)
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public class ArraysEquals {
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public char[] testCharArray1 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".toCharArray();
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public char[] testCharArray2 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789b".toCharArray();
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public char[] testCharArray3 = "123456789012345678901234567890123456789a123456789012345678901234567890123456789b".toCharArray();
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public char[] testCharArray4 = "1234567890a2345678901234567890123456789a123456789012345678901234567890123456789b".toCharArray();
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public char[] testCharArray5 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".toCharArray();
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public byte[] testByteArray1 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".getBytes();
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public byte[] testByteArray2 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789b".getBytes();
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public byte[] testByteArray3 = "123456789012345678901234567890123456789a123456789012345678901234567890123456789b".getBytes();
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public byte[] testByteArray4 = "1234567890a2345678901234567890123456789a123456789012345678901234567890123456789b".getBytes();
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public byte[] testByteArray5 = "1234567890123456789012345678901234567890123456789012345678901234567890123456789a".getBytes();
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/** Char array tests */
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@Benchmark
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public boolean testCharTrue() {
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return Arrays.equals(testCharArray1, testCharArray5);
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}
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@Benchmark
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public boolean testCharFalseEnd() {
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return Arrays.equals(testCharArray1, testCharArray2);
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}
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@Benchmark
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public boolean testCharFalseMid() {
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return Arrays.equals(testCharArray1, testCharArray3);
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}
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@Benchmark
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public boolean testCharFalseBeginning() {
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return Arrays.equals(testCharArray1, testCharArray4);
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}
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/** Byte arrays tests */
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@Benchmark
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public boolean testByteTrue() {
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return Arrays.equals(testByteArray1, testByteArray5);
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}
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@Benchmark
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public boolean testByteFalseEnd() {
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return Arrays.equals(testByteArray1, testByteArray2);
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}
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@Benchmark
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public boolean testByteFalseMid() {
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return Arrays.equals(testByteArray1, testByteArray3);
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}
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@Benchmark
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public boolean testByteFalseBeginning() {
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return Arrays.equals(testByteArray1, testByteArray4);
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}
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}
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