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.nio.ByteOrder;
28 import java.util.concurrent.TimeUnit;
29
30 import java.lang.foreign.MemorySegment;
31
32 import jdk.incubator.vector.ShortVector;
33 import jdk.incubator.vector.VectorOperators;
34 import jdk.incubator.vector.VectorSpecies;
35 import org.openjdk.jmh.annotations.Benchmark;
36 import org.openjdk.jmh.annotations.BenchmarkMode;
37 import org.openjdk.jmh.annotations.CompilerControl;
38 import org.openjdk.jmh.annotations.Fork;
39 import org.openjdk.jmh.annotations.Measurement;
40 import org.openjdk.jmh.annotations.Mode;
41 import org.openjdk.jmh.annotations.OutputTimeUnit;
42 import org.openjdk.jmh.annotations.Param;
43 import org.openjdk.jmh.annotations.Setup;
44 import org.openjdk.jmh.annotations.State;
45 import org.openjdk.jmh.annotations.TearDown;
46 import org.openjdk.jmh.annotations.Warmup;
47
48 @BenchmarkMode(Mode.AverageTime)
49 @Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)
50 @Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
51 @State(org.openjdk.jmh.annotations.Scope.Thread)
52 @OutputTimeUnit(TimeUnit.NANOSECONDS)
53 @Fork(value = 1, jvmArgsAppend = {
54 "--add-modules=jdk.incubator.vector",
55 "--enable-preview",
56 "--enable-native-access", "ALL-UNNAMED"})
57 public class TestLoadStoreShorts {
58 private static final VectorSpecies<Short> SPECIES = VectorSpecies.ofLargestShape(short.class);
59
60 @Param("256")
61 private int size;
62
63 private int longSize;
64
65 private short[] srcArray;
66
67 private short[] dstArray;
68
69
70 private MemorySegment srcSegmentHeap;
71
72 private MemorySegment dstSegmentHeap;
73
74 private MemorySegment srcSegment;
75
76 private MemorySegment dstSegment;
77
78 private short[] a, b, c;
79
80 @Setup
81 public void setup() {
82 var longSize = size / Short.BYTES;
83 srcArray = new short[longSize];
84 dstArray = srcArray.clone();
85 for (int i = 0; i < srcArray.length; i++) {
86 srcArray[i] = (short) i;
87 }
88
89 srcSegmentHeap = MemorySegment.ofArray(new byte[size]);
90 dstSegmentHeap = MemorySegment.ofArray(new byte[size]);
91
92 srcSegment = Arena.ofAuto().allocate(size, SPECIES.vectorByteSize());
93 dstSegment = Arena.ofAuto().allocate(size, SPECIES.vectorByteSize());
94
95 this.longSize = longSize;
96
97 a = new short[size];
98 b = new short[size];
99 c = new short[size];
100 }
101
102 @Benchmark
103 public void array() {
104 for (int i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
105 var v = ShortVector.fromArray(SPECIES, srcArray, i);
106 v.intoArray(dstArray, i);
107 }
108 }
109
110 @Benchmark
111 public void vectAdd1() {
112 var a = this.a;
113 var b = this.b;
114 var c = this.c;
115
116 for (int i = 0; i < a.length; i += SPECIES.length()) {
117 ShortVector av = ShortVector.fromArray(SPECIES, a, i);
118 ShortVector bv = ShortVector.fromArray(SPECIES, b, i);
119 av.lanewise(VectorOperators.ADD, bv).intoArray(c, i);
120 }
121 }
122
123 @Benchmark
124 public void vectAdd2() {
125 var a = this.a;
126 var b = this.b;
127 var c = this.c;
128
129 for (int i = 0; i < a.length/SPECIES.length(); i++) {
130 ShortVector av = ShortVector.fromArray(SPECIES, a, (i*SPECIES.length()));
131 ShortVector bv = ShortVector.fromArray(SPECIES, b, (i*SPECIES.length()));
132 av.lanewise(VectorOperators.ADD, bv).intoArray(c, (i*SPECIES.length()));
133 }
134 }
135
136 @Benchmark
137 public void arrayAdd() {
138 for (int i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
139 var v = ShortVector.fromArray(SPECIES, srcArray, i);
140 v = v.add(v);
141 v.intoArray(dstArray, i);
142 }
143 }
144
145 @Benchmark
146 public void heapSegment() {
147 for (long i = 0; i < SPECIES.loopBound(longSize); i += SPECIES.length()) {
148 var v = ShortVector.fromMemorySegment(SPECIES, srcSegmentHeap, i, ByteOrder.nativeOrder());
149 v.intoMemorySegment(dstSegmentHeap, i, ByteOrder.nativeOrder());
150 }
151 }
152
153 @Benchmark
154 public void segmentNativeImplicit() {
155 for (long i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
156 var v = ShortVector.fromMemorySegment(SPECIES, srcSegment, i, ByteOrder.nativeOrder());
157 v.intoMemorySegment(dstSegment, i, ByteOrder.nativeOrder());
158 }
159 }
160
161 @Benchmark
162 public void segmentNativeConfined() {
163 try (final var arena = Arena.ofConfined()) {
164 final var srcSegmentConfined = srcSegment.reinterpret(arena, null);
165 final var dstSegmentConfined = dstSegment.reinterpret(arena, null);
166
167 for (long i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
168 var v = ShortVector.fromMemorySegment(SPECIES, srcSegmentConfined, i, ByteOrder.nativeOrder());
169 v.intoMemorySegment(dstSegmentConfined, i, ByteOrder.nativeOrder());
170 }
171 }
172 }
173 }