/* * Copyright 2015 The Netty Project * * The Netty Project licenses this file to you under the Apache License, * version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ package io.netty.microbench.internal; import io.netty.microbench.util.AbstractMicrobenchmark; import io.netty.util.internal.PlatformDependent; import java.util.Arrays; import java.util.concurrent.TimeUnit; import org.openjdk.jmh.annotations.Benchmark; import org.openjdk.jmh.annotations.BenchmarkMode; import org.openjdk.jmh.annotations.Level; import org.openjdk.jmh.annotations.Mode; import org.openjdk.jmh.annotations.OutputTimeUnit; import org.openjdk.jmh.annotations.Param; import org.openjdk.jmh.annotations.Scope; import org.openjdk.jmh.annotations.Setup; import org.openjdk.jmh.annotations.State; import org.openjdk.jmh.annotations.Threads; @Threads(1) @State(Scope.Benchmark) public class PlatformDependentBenchmark extends AbstractMicrobenchmark { @Param({ "10", "50", "100", "1000", "10000", "100000" }) private int size; private byte[] bytes1; private byte[] bytes2; @Setup(Level.Trial) public void setup() { bytes1 = new byte[size]; bytes2 = new byte[size]; for (int i = 0; i < size; i++) { bytes1[i] = bytes2[i] = (byte) i; } } @Benchmark @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) public boolean unsafeBytesEqual() { return PlatformDependent.equals(bytes1, 0, bytes2, 0, bytes1.length); } @Benchmark @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) public boolean arraysBytesEqual() { return Arrays.equals(bytes1, bytes2); } }