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 0 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 Morph0 { 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 private IntUnaryOperator[] unbounded_mref_1; 65 private IntUnaryOperator[] unbounded_mref_2; 66 private IntUnaryOperator[] unbounded_mref_4; 67 68 private IntUnaryOperator[] bounded_mref_1; 69 private IntUnaryOperator[] bounded_mref_2; 70 private IntUnaryOperator[] bounded_mref_4; 71 72 @Setup(Level.Trial) setup()73 public void setup() { 74 setup_inner(); 75 setup_lambda(); 76 setup_unbounded_mref(); 77 setup_bounded_mref(); 78 } 79 setup_inner()80 private void setup_inner() { 81 inner_4 = new IntUnaryOperator[] { 82 new IntUnaryOperator() { 83 @Override 84 public int applyAsInt(int x) { 85 return x + 1; 86 } 87 }, 88 new IntUnaryOperator() { 89 @Override 90 public int applyAsInt(int x) { 91 return x + 2; 92 } 93 }, 94 new IntUnaryOperator() { 95 @Override 96 public int applyAsInt(int x) { 97 return x + 3; 98 } 99 }, 100 new IntUnaryOperator() { 101 @Override 102 public int applyAsInt(int x) { 103 return x + 4; 104 } 105 }, 106 }; 107 inner_2 = new IntUnaryOperator[] { inner_4[0], inner_4[1], inner_4[0], inner_4[1], }; 108 inner_1 = new IntUnaryOperator[] { inner_4[0], inner_4[0], inner_4[0], inner_4[0], }; 109 } 110 setup_lambda()111 private void setup_lambda() { 112 lambda_4 = new IntUnaryOperator[] { 113 x -> x + 1, 114 x -> x + 2, 115 x -> x + 3, 116 x -> x + 4, 117 }; 118 lambda_2 = new IntUnaryOperator[] { lambda_4[0], lambda_4[1], lambda_4[0], lambda_4[1], }; 119 lambda_1 = new IntUnaryOperator[] { lambda_4[0], lambda_4[0], lambda_4[0], lambda_4[0], }; 120 } 121 func1(int x)122 public static int func1(int x) { 123 return x + 1; 124 } 125 func2(int x)126 public static int func2(int x) { 127 return x + 2; 128 } 129 func3(int x)130 public static int func3(int x) { 131 return x + 3; 132 } 133 func4(int x)134 public static int func4(int x) { 135 return x + 4; 136 } 137 setup_unbounded_mref()138 private void setup_unbounded_mref() { 139 unbounded_mref_4 = new IntUnaryOperator[] { 140 Morph0::func1, 141 Morph0::func2, 142 Morph0::func3, 143 Morph0::func4, 144 }; 145 unbounded_mref_2 = new IntUnaryOperator[] { unbounded_mref_4[0], unbounded_mref_4[1], unbounded_mref_4[0], unbounded_mref_4[1], }; 146 unbounded_mref_1 = new IntUnaryOperator[] { unbounded_mref_4[0], unbounded_mref_4[0], unbounded_mref_4[0], unbounded_mref_4[0], }; 147 } 148 ifunc1(int x)149 public int ifunc1(int x) { 150 return x + 1; 151 } 152 ifunc2(int x)153 public int ifunc2(int x) { 154 return x + 2; 155 } 156 ifunc3(int x)157 public int ifunc3(int x) { 158 return x + 3; 159 } 160 ifunc4(int x)161 public int ifunc4(int x) { 162 return x + 4; 163 } 164 setup_bounded_mref()165 private void setup_bounded_mref() { 166 bounded_mref_4 = new IntUnaryOperator[] { 167 this::ifunc1, 168 this::ifunc2, 169 this::ifunc3, 170 this::ifunc4, 171 }; 172 bounded_mref_2 = new IntUnaryOperator[] { bounded_mref_4[0], bounded_mref_4[1], bounded_mref_4[0], bounded_mref_4[1], }; 173 bounded_mref_1 = new IntUnaryOperator[] { bounded_mref_4[0], bounded_mref_4[0], bounded_mref_4[0], bounded_mref_4[0], }; 174 } 175 process(Blackhole bh, IntUnaryOperator[] operations)176 public void process(Blackhole bh, IntUnaryOperator[] operations) { 177 for (int i = 0; i < LIMIT; i++) { 178 for (IntUnaryOperator op : operations) { 179 bh.consume(op.applyAsInt(i)); 180 } 181 } 182 } 183 184 @Benchmark 185 @OperationsPerInvocation(OPERATIONS) inner1(Blackhole bh)186 public void inner1(Blackhole bh) { 187 process(bh, inner_1); 188 } 189 190 @Benchmark 191 @OperationsPerInvocation(OPERATIONS) inner2(Blackhole bh)192 public void inner2(Blackhole bh) { 193 process(bh, inner_2); 194 } 195 196 @Benchmark 197 @OperationsPerInvocation(OPERATIONS) inner4(Blackhole bh)198 public void inner4(Blackhole bh) { 199 process(bh, inner_4); 200 } 201 202 @Benchmark 203 @OperationsPerInvocation(OPERATIONS) lambda1(Blackhole bh)204 public void lambda1(Blackhole bh) { 205 process(bh, lambda_1); 206 } 207 208 @Benchmark 209 @OperationsPerInvocation(OPERATIONS) lambda2(Blackhole bh)210 public void lambda2(Blackhole bh) { 211 process(bh, lambda_2); 212 } 213 214 @Benchmark 215 @OperationsPerInvocation(OPERATIONS) lambda4(Blackhole bh)216 public void lambda4(Blackhole bh) { 217 process(bh, lambda_4); 218 } 219 220 @Benchmark 221 @OperationsPerInvocation(OPERATIONS) mref1(Blackhole bh)222 public void mref1(Blackhole bh) { 223 process(bh, unbounded_mref_1); 224 } 225 226 @Benchmark 227 @OperationsPerInvocation(OPERATIONS) mref2(Blackhole bh)228 public void mref2(Blackhole bh) { 229 process(bh, unbounded_mref_2); 230 } 231 232 @Benchmark 233 @OperationsPerInvocation(OPERATIONS) mref4(Blackhole bh)234 public void mref4(Blackhole bh) { 235 process(bh, unbounded_mref_4); 236 } 237 238 @Benchmark 239 @OperationsPerInvocation(OPERATIONS) mref_bnd1(Blackhole bh)240 public void mref_bnd1(Blackhole bh) { 241 process(bh, bounded_mref_1); 242 } 243 244 @Benchmark 245 @OperationsPerInvocation(OPERATIONS) mref_bnd2(Blackhole bh)246 public void mref_bnd2(Blackhole bh) { 247 process(bh, bounded_mref_2); 248 } 249 250 @Benchmark 251 @OperationsPerInvocation(OPERATIONS) mref_bnd4(Blackhole bh)252 public void mref_bnd4(Blackhole bh) { 253 process(bh, bounded_mref_4); 254 } 255 256 } 257 258