| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.groovy.bench; |
| |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Fork; |
| import org.openjdk.jmh.annotations.Measurement; |
| 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.State; |
| import org.openjdk.jmh.annotations.Warmup; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| @Warmup(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS) |
| @Measurement(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS) |
| @Fork(3) |
| @BenchmarkMode(Mode.AverageTime) |
| @OutputTimeUnit(TimeUnit.MILLISECONDS) |
| @State(Scope.Thread) |
| public class AryBench { |
| |
| @Param({"10", "100", "1000", "1000000"}) |
| private int n; |
| |
| @Benchmark |
| public int java() { |
| return JavaAry.ary(n); |
| } |
| |
| @Benchmark |
| public int groovy() { |
| return Ary.ary(n); |
| } |
| |
| private static class JavaAry { |
| static int ary(int n) { |
| int[] x = new int[n]; |
| int[] y = new int[n]; |
| |
| for (int i = 0; i < n; i++) |
| x[i] = i + 1; |
| for (int k = 0; k < 1000; k++ ) |
| for (int j = n-1; j >= 0; j--) |
| y[j] += x[j]; |
| |
| return y[0] + y[n-1]; |
| } |
| } |
| |
| } |