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