1 /*
2 * Copyright (c) 2021, 2022, 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.
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23 */
24 package org.openjdk.bench.jdk.incubator.vector;
25
26 import java.lang.foreign.Arena;
27 import java.lang.foreign.MemorySegment;
28 import java.nio.ByteOrder;
29 import java.util.concurrent.TimeUnit;
30 import jdk.incubator.vector.ByteVector;
31 import jdk.incubator.vector.VectorOperators;
32 import jdk.incubator.vector.VectorSpecies;
33 import org.openjdk.jmh.annotations.Benchmark;
34 import org.openjdk.jmh.annotations.BenchmarkMode;
35 import org.openjdk.jmh.annotations.CompilerControl;
36 import org.openjdk.jmh.annotations.Fork;
37 import org.openjdk.jmh.annotations.Measurement;
38 import org.openjdk.jmh.annotations.Mode;
39 import org.openjdk.jmh.annotations.OutputTimeUnit;
40 import org.openjdk.jmh.annotations.Param;
41 import org.openjdk.jmh.annotations.Setup;
42 import org.openjdk.jmh.annotations.State;
43 import org.openjdk.jmh.annotations.Warmup;
44
45 @BenchmarkMode(Mode.AverageTime)
46 @Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)
47 @Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
48 @State(org.openjdk.jmh.annotations.Scope.Thread)
49 @OutputTimeUnit(TimeUnit.NANOSECONDS)
50 @Fork(value = 1, jvmArgsAppend = {
51 "--add-modules=jdk.incubator.vector",
52 "--enable-native-access", "ALL-UNNAMED",
53 "-Djdk.incubator.vector.VECTOR_ACCESS_OOB_CHECK=1"})
54 public class TestLoadStoreBytes {
55 private static final VectorSpecies<Byte> SPECIES = VectorSpecies.ofLargestShape(byte.class);
56
57 @Param("1024")
58 private int size;
59
60 private byte[] srcArray;
61
62 private byte[] dstArray;
63
64
65 private MemorySegment srcSegmentHeap;
66
67 private MemorySegment dstSegmentHeap;
68
69 private MemorySegment srcSegment;
70
71 private MemorySegment dstSegment;
72
73 private byte[] a, b, c;
74
75 @Setup
76 public void setup() {
77 srcArray = new byte[size];
78 dstArray = srcArray.clone();
79 for (int i = 0; i < srcArray.length; i++) {
80 srcArray[i] = (byte) i;
81 }
82
83 srcSegmentHeap = MemorySegment.ofArray(new byte[size]);
84 dstSegmentHeap = MemorySegment.ofArray(new byte[size]);
85
86 srcSegment = Arena.ofAuto().allocate(size, SPECIES.vectorByteSize());
87 dstSegment = Arena.ofAuto().allocate(size, SPECIES.vectorByteSize());
88
89 a = new byte[size];
90 b = new byte[size];
91 c = new byte[size];
92 }
93
94
95 @Benchmark
96 public void array() {
97 for (int i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
98 var v = ByteVector.fromArray(SPECIES, srcArray, i);
99 v.intoArray(dstArray, i);
100 }
101 }
102
103 @Benchmark
104 public void arrayScalar() {
105 for (int i = 0; i < SPECIES.loopBound(srcArray.length); i ++) {
106 var v = srcArray[i];
107 dstArray[i] = v;
108 }
109 }
110
111 @Benchmark
112 public void vectAdd1() {
113 var a = this.a;
114 var b = this.b;
115 var c = this.c;
116
117 for (int i = 0; i < a.length; i += SPECIES.length()) {
118 ByteVector av = ByteVector.fromArray(SPECIES, a, i);
119 ByteVector bv = ByteVector.fromArray(SPECIES, b, i);
120 av.lanewise(VectorOperators.ADD, bv).intoArray(c, i);
121 }
122 }
123
124 @Benchmark
125 public void vectAdd2() {
126 var a = this.a;
127 var b = this.b;
128 var c = this.c;
129
130 for (int i = 0; i < a.length/SPECIES.length(); i++) {
131 ByteVector av = ByteVector.fromArray(SPECIES, a, (i*SPECIES.length()));
132 ByteVector bv = ByteVector.fromArray(SPECIES, b, (i*SPECIES.length()));
133 av.lanewise(VectorOperators.ADD, bv).intoArray(c, (i*SPECIES.length()));
134 }
135 }
136
137 @Benchmark
138 public void arrayAdd() {
139 for (int i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
140 var v = ByteVector.fromArray(SPECIES, srcArray, i);
141 v = v.add(v);
142 v.intoArray(dstArray, i);
143 }
144 }
145
146 @Benchmark
147 public void segmentHeap() {
148 for (long i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
149 var v = ByteVector.fromMemorySegment(SPECIES, srcSegmentHeap, i, ByteOrder.nativeOrder());
150 v.intoMemorySegment(dstSegmentHeap, i, ByteOrder.nativeOrder());
151 }
152 }
153
154 @Benchmark
155 public void segmentNativeImplicit() {
156 for (long i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
157 var v = ByteVector.fromMemorySegment(SPECIES, srcSegment, i, ByteOrder.nativeOrder());
158 v.intoMemorySegment(dstSegment, i, ByteOrder.nativeOrder());
159 }
160 }
161
162 @Benchmark
163 public void segmentNativeConfined() {
164 try (final var arena = Arena.ofConfined()) {
165 final var srcSegmentConfined = srcSegment.reinterpret(arena, null);
166 final var dstSegmentConfined = dstSegment.reinterpret(arena, null);
167
168 for (long i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
169 var v = ByteVector.fromMemorySegment(SPECIES, srcSegmentConfined, i, ByteOrder.nativeOrder());
170 v.intoMemorySegment(dstSegmentConfined, i, ByteOrder.nativeOrder());
171 }
172 }
173 }
174 }