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.vm.lambda.invoke; 24 25 import org.openjdk.jmh.annotations.Benchmark; 26 import org.openjdk.jmh.annotations.BenchmarkMode; 27 import org.openjdk.jmh.annotations.Level; 28 import org.openjdk.jmh.annotations.Mode; 29 import org.openjdk.jmh.annotations.OperationsPerInvocation; 30 import org.openjdk.jmh.annotations.OutputTimeUnit; 31 import org.openjdk.jmh.annotations.Scope; 32 import org.openjdk.jmh.annotations.Setup; 33 import org.openjdk.jmh.annotations.State; 34 import org.openjdk.jmh.infra.Blackhole; 35 36 import java.util.concurrent.TimeUnit; 37 import java.util.function.IntUnaryOperator; 38 39 /** 40 * evaluates N-morphic invocation costs. 41 * N different lambdas each capture 1 variable 42 * 43 * @author Sergey Kuksenko (sergey.kuksenko@oracle.com) 44 */ 45 @BenchmarkMode(Mode.AverageTime) 46 @OutputTimeUnit(TimeUnit.NANOSECONDS) 47 @State(Scope.Thread) 48 public class Morph1 { 49 50 51 private static final int LIMIT = 16536; 52 private static final int OPS = 4; 53 private static final int OPERATIONS = OPS*LIMIT; 54 55 // <source of functional interface>_N; where N - how many different targets 56 private IntUnaryOperator[] inner_1; 57 private IntUnaryOperator[] inner_2; 58 private IntUnaryOperator[] inner_4; 59 60 private IntUnaryOperator[] lambda_1; 61 private IntUnaryOperator[] lambda_2; 62 private IntUnaryOperator[] lambda_4; 63 64 @Setup(Level.Trial) setup()65 public void setup() { 66 setup_inner(1,2,3,4); 67 setup_lambda(1,2,3,4); 68 } 69 setup_inner(int a, int b, int c, int d)70 private void setup_inner(int a, int b, int c, int d) { 71 inner_4 = new IntUnaryOperator[] { 72 new IntUnaryOperator() { 73 @Override 74 public int applyAsInt(int x) { 75 return x + a; 76 } 77 }, 78 new IntUnaryOperator() { 79 @Override 80 public int applyAsInt(int x) { 81 return x + b; 82 } 83 }, 84 new IntUnaryOperator() { 85 @Override 86 public int applyAsInt(int x) { 87 return x + c; 88 } 89 }, 90 new IntUnaryOperator() { 91 @Override 92 public int applyAsInt(int x) { 93 return x + d; 94 } 95 }, 96 }; 97 inner_2 = new IntUnaryOperator[] { inner_4[0], inner_4[1], inner_4[0], inner_4[1], }; 98 inner_1 = new IntUnaryOperator[] { inner_4[0], inner_4[0], inner_4[0], inner_4[0], }; 99 } 100 setup_lambda(int a, int b, int c, int d)101 private void setup_lambda(int a, int b, int c, int d) { 102 lambda_4 = new IntUnaryOperator[] { 103 x -> x + a, 104 x -> x + b, 105 x -> x + c, 106 x -> x + d, 107 }; 108 lambda_2 = new IntUnaryOperator[] { lambda_4[0], lambda_4[1], lambda_4[0], lambda_4[1], }; 109 lambda_1 = new IntUnaryOperator[] { lambda_4[0], lambda_4[0], lambda_4[0], lambda_4[0], }; 110 } 111 process(Blackhole bh, IntUnaryOperator[] operations)112 public void process(Blackhole bh, IntUnaryOperator[] operations) { 113 for (int i = 0; i < LIMIT; i++) { 114 for (IntUnaryOperator op : operations) { 115 bh.consume(op.applyAsInt(i)); 116 } 117 } 118 } 119 120 @Benchmark 121 @OperationsPerInvocation(OPERATIONS) inner1(Blackhole bh)122 public void inner1(Blackhole bh) { 123 process(bh, inner_1); 124 } 125 126 @Benchmark 127 @OperationsPerInvocation(OPERATIONS) inner2(Blackhole bh)128 public void inner2(Blackhole bh) { 129 process(bh, inner_2); 130 } 131 132 @Benchmark 133 @OperationsPerInvocation(OPERATIONS) inner4(Blackhole bh)134 public void inner4(Blackhole bh) { 135 process(bh, inner_4); 136 } 137 138 @Benchmark 139 @OperationsPerInvocation(OPERATIONS) lambda1(Blackhole bh)140 public void lambda1(Blackhole bh) { 141 process(bh, lambda_1); 142 } 143 144 @Benchmark 145 @OperationsPerInvocation(OPERATIONS) lambda2(Blackhole bh)146 public void lambda2(Blackhole bh) { 147 process(bh, lambda_2); 148 } 149 150 @Benchmark 151 @OperationsPerInvocation(OPERATIONS) lambda4(Blackhole bh)152 public void lambda4(Blackhole bh) { 153 process(bh, lambda_4); 154 } 155 156 } 157 158