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.vm.lambda.invoke;
26
27 import org.openjdk.jmh.annotations.Benchmark;
28 import org.openjdk.jmh.annotations.BenchmarkMode;
29 import org.openjdk.jmh.annotations.Level;
30 import org.openjdk.jmh.annotations.Mode;
31 import org.openjdk.jmh.annotations.OperationsPerInvocation;
32 import org.openjdk.jmh.annotations.OutputTimeUnit;
33 import org.openjdk.jmh.annotations.Scope;
34 import org.openjdk.jmh.annotations.Setup;
35 import org.openjdk.jmh.annotations.State;
36 import org.openjdk.jmh.infra.Blackhole;
37
38 import java.util.concurrent.TimeUnit;
39 import java.util.function.IntUnaryOperator;
40
41 /**
42 * evaluates N-morphic invocation costs.
43 * N different lambdas each capture 0 variable
44 *
45 * @author Sergey Kuksenko (sergey.kuksenko@oracle.com)
46 */
47 @BenchmarkMode(Mode.AverageTime)
48 @OutputTimeUnit(TimeUnit.NANOSECONDS)
49 @State(Scope.Thread)
50 public class Morph0 {
51
52
53 private static final int LIMIT = 16536;
54 private static final int OPS = 4;
55 private static final int OPERATIONS = OPS*LIMIT;
56
57 // <source of functional interface>_N; where N - how many different targets
58 private IntUnaryOperator[] inner_1;
59 private IntUnaryOperator[] inner_2;
60 private IntUnaryOperator[] inner_4;
61
62 private IntUnaryOperator[] lambda_1;
63 private IntUnaryOperator[] lambda_2;
64 private IntUnaryOperator[] lambda_4;
65
66 private IntUnaryOperator[] unbounded_mref_1;
67 private IntUnaryOperator[] unbounded_mref_2;
68 private IntUnaryOperator[] unbounded_mref_4;
69
70 private IntUnaryOperator[] bounded_mref_1;
71 private IntUnaryOperator[] bounded_mref_2;
72 private IntUnaryOperator[] bounded_mref_4;
73
74 @Setup(Level.Trial)
75 public void setup() {
76 setup_inner();
77 setup_lambda();
78 setup_unbounded_mref();
79 setup_bounded_mref();
80 }
81
82 private void setup_inner() {
83 inner_4 = new IntUnaryOperator[] {
84 new IntUnaryOperator() {
85 @Override
86 public int applyAsInt(int x) {
87 return x + 1;
88 }
89 },
90 new IntUnaryOperator() {
91 @Override
92 public int applyAsInt(int x) {
93 return x + 2;
94 }
95 },
96 new IntUnaryOperator() {
97 @Override
98 public int applyAsInt(int x) {
99 return x + 3;
100 }
101 },
102 new IntUnaryOperator() {
103 @Override
104 public int applyAsInt(int x) {
105 return x + 4;
106 }
107 },
108 };
109 inner_2 = new IntUnaryOperator[] { inner_4[0], inner_4[1], inner_4[0], inner_4[1], };
110 inner_1 = new IntUnaryOperator[] { inner_4[0], inner_4[0], inner_4[0], inner_4[0], };
111 }
112
113 private void setup_lambda() {
114 lambda_4 = new IntUnaryOperator[] {
115 x -> x + 1,
116 x -> x + 2,
117 x -> x + 3,
118 x -> x + 4,
119 };
120 lambda_2 = new IntUnaryOperator[] { lambda_4[0], lambda_4[1], lambda_4[0], lambda_4[1], };
121 lambda_1 = new IntUnaryOperator[] { lambda_4[0], lambda_4[0], lambda_4[0], lambda_4[0], };
122 }
123
124 public static int func1(int x) {
125 return x + 1;
126 }
127
128 public static int func2(int x) {
129 return x + 2;
130 }
131
132 public static int func3(int x) {
133 return x + 3;
134 }
135
136 public static int func4(int x) {
137 return x + 4;
138 }
139
140 private void setup_unbounded_mref() {
141 unbounded_mref_4 = new IntUnaryOperator[] {
142 Morph0::func1,
143 Morph0::func2,
144 Morph0::func3,
145 Morph0::func4,
146 };
147 unbounded_mref_2 = new IntUnaryOperator[] { unbounded_mref_4[0], unbounded_mref_4[1], unbounded_mref_4[0], unbounded_mref_4[1], };
148 unbounded_mref_1 = new IntUnaryOperator[] { unbounded_mref_4[0], unbounded_mref_4[0], unbounded_mref_4[0], unbounded_mref_4[0], };
149 }
150
151 public int ifunc1(int x) {
152 return x + 1;
153 }
154
155 public int ifunc2(int x) {
156 return x + 2;
157 }
158
159 public int ifunc3(int x) {
160 return x + 3;
161 }
162
163 public int ifunc4(int x) {
164 return x + 4;
165 }
166
167 private void setup_bounded_mref() {
168 bounded_mref_4 = new IntUnaryOperator[] {
169 this::ifunc1,
170 this::ifunc2,
171 this::ifunc3,
172 this::ifunc4,
173 };
174 bounded_mref_2 = new IntUnaryOperator[] { bounded_mref_4[0], bounded_mref_4[1], bounded_mref_4[0], bounded_mref_4[1], };
175 bounded_mref_1 = new IntUnaryOperator[] { bounded_mref_4[0], bounded_mref_4[0], bounded_mref_4[0], bounded_mref_4[0], };
176 }
177
178 public void process(Blackhole bh, IntUnaryOperator[] operations) {
179 for (int i = 0; i < LIMIT; i++) {
180 for (IntUnaryOperator op : operations) {
181 bh.consume(op.applyAsInt(i));
182 }
183 }
184 }
185
186 @Benchmark
187 @OperationsPerInvocation(OPERATIONS)
188 public void inner1(Blackhole bh) {
189 process(bh, inner_1);
190 }
191
192 @Benchmark
193 @OperationsPerInvocation(OPERATIONS)
194 public void inner2(Blackhole bh) {
195 process(bh, inner_2);
196 }
197
198 @Benchmark
199 @OperationsPerInvocation(OPERATIONS)
200 public void inner4(Blackhole bh) {
201 process(bh, inner_4);
202 }
203
204 @Benchmark
205 @OperationsPerInvocation(OPERATIONS)
206 public void lambda1(Blackhole bh) {
207 process(bh, lambda_1);
208 }
209
210 @Benchmark
211 @OperationsPerInvocation(OPERATIONS)
212 public void lambda2(Blackhole bh) {
213 process(bh, lambda_2);
214 }
215
216 @Benchmark
217 @OperationsPerInvocation(OPERATIONS)
218 public void lambda4(Blackhole bh) {
219 process(bh, lambda_4);
220 }
221
222 @Benchmark
223 @OperationsPerInvocation(OPERATIONS)
224 public void mref1(Blackhole bh) {
225 process(bh, unbounded_mref_1);
226 }
227
228 @Benchmark
229 @OperationsPerInvocation(OPERATIONS)
230 public void mref2(Blackhole bh) {
231 process(bh, unbounded_mref_2);
232 }
233
234 @Benchmark
235 @OperationsPerInvocation(OPERATIONS)
236 public void mref4(Blackhole bh) {
237 process(bh, unbounded_mref_4);
238 }
239
240 @Benchmark
241 @OperationsPerInvocation(OPERATIONS)
242 public void mref_bnd1(Blackhole bh) {
243 process(bh, bounded_mref_1);
244 }
245
246 @Benchmark
247 @OperationsPerInvocation(OPERATIONS)
248 public void mref_bnd2(Blackhole bh) {
249 process(bh, bounded_mref_2);
250 }
251
252 @Benchmark
253 @OperationsPerInvocation(OPERATIONS)
254 public void mref_bnd4(Blackhole bh) {
255 process(bh, bounded_mref_4);
256 }
257
258 }
259