1 /* 2 * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package org.openjdk.bench.java.util.stream.ops.value; 26 27 import org.openjdk.jmh.annotations.Benchmark; 28 import org.openjdk.jmh.annotations.BenchmarkMode; 29 import org.openjdk.jmh.annotations.Mode; 30 import org.openjdk.jmh.annotations.OutputTimeUnit; 31 import org.openjdk.jmh.annotations.Param; 32 import org.openjdk.jmh.annotations.Scope; 33 import org.openjdk.jmh.annotations.Setup; 34 import org.openjdk.jmh.annotations.State; 35 36 import java.util.concurrent.TimeUnit; 37 import java.util.function.LongPredicate; 38 import java.util.stream.LongStream; 39 40 /** 41 * Benchmark for anyMatch() operation. 42 */ 43 @BenchmarkMode(Mode.Throughput) 44 @OutputTimeUnit(TimeUnit.SECONDS) 45 @State(Scope.Thread) 46 public class AnyMatch { 47 48 /** 49 * Implementation notes: 50 * - operations are explicit inner classes to untangle unwanted lambda effects 51 * - the predicates are always false to avert shortcurcuiting 52 */ 53 @Param("100000") 54 private int size; 55 56 private LongPredicate p1, p2, p3; 57 58 @Setup 59 public void setup() { 60 p1 = new LongPredicate() { 61 @Override 62 public boolean test(long v) { 63 return false; 64 } 65 }; 66 p2 = new LongPredicate() { 67 @Override 68 public boolean test(long v) { 69 return false; 70 } 71 }; 72 p3 = new LongPredicate() { 73 @Override 74 public boolean test(long v) { 75 return false; 76 } 77 }; 78 } 79 80 @Benchmark 81 public boolean seq_invoke() { 82 return LongStream.range(0, size).anyMatch(p1); 83 } 84 85 @Benchmark 86 public int seq_chain111() { 87 int s = 0; 88 s += (LongStream.range(0, size).anyMatch(p1)) ? 1 : 0; 89 s += (LongStream.range(0, size).anyMatch(p1)) ? 1 : 0; 90 s += (LongStream.range(0, size).anyMatch(p1)) ? 1 : 0; 91 return s; 92 } 93 94 @Benchmark 95 public int seq_chain123() { 96 int s = 0; 97 s += (LongStream.range(0, size).anyMatch(p1)) ? 1 : 0; 98 s += (LongStream.range(0, size).anyMatch(p2)) ? 1 : 0; 99 s += (LongStream.range(0, size).anyMatch(p3)) ? 1 : 0; 100 return s; 101 } 102 103 @Benchmark 104 public boolean par_invoke() { 105 return LongStream.range(0, size).parallel().anyMatch(p1); 106 } 107 108 @Benchmark 109 public int par_chain111() { 110 int s = 0; 111 s += (LongStream.range(0, size).parallel().anyMatch(p1)) ? 1 : 0; 112 s += (LongStream.range(0, size).parallel().anyMatch(p1)) ? 1 : 0; 113 s += (LongStream.range(0, size).parallel().anyMatch(p1)) ? 1 : 0; 114 return s; 115 } 116 117 @Benchmark 118 public int par_chain123() { 119 int s = 0; 120 s += (LongStream.range(0, size).parallel().anyMatch(p1)) ? 1 : 0; 121 s += (LongStream.range(0, size).parallel().anyMatch(p2)) ? 1 : 0; 122 s += (LongStream.range(0, size).parallel().anyMatch(p3)) ? 1 : 0; 123 return s; 124 } 125 126 }