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.
22 *
23 */
24 package org.openjdk.bench.jdk.incubator.vector;
25
26 import java.nio.ByteOrder;
27 import java.util.concurrent.TimeUnit;
28
29 import jdk.incubator.foreign.MemoryAddress;
30 import jdk.incubator.foreign.MemorySegment;
31 import jdk.incubator.foreign.ResourceScope;
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.foreign,jdk.incubator.vector",
55 "-Dforeign.restricted=permit",
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
75 private ResourceScope implicitScope;
76
77 private MemorySegment srcSegment;
78
79 private MemorySegment dstSegment;
80
81
82 private MemoryAddress srcAddress;
83
84 private MemoryAddress dstAddress;
85
86 private short[] a, b, c;
87
88 @Setup
89 public void setup() {
90 var longSize = size / Short.BYTES;
91 srcArray = new short[longSize];
92 dstArray = srcArray.clone();
93 for (int i = 0; i < srcArray.length; i++) {
94 srcArray[i] = (short) i;
95 }
96
97 srcSegmentHeap = MemorySegment.ofArray(new byte[size]);
98 dstSegmentHeap = MemorySegment.ofArray(new byte[size]);
99
100 implicitScope = ResourceScope.newImplicitScope();
101 srcSegment = MemorySegment.allocateNative(size, SPECIES.vectorByteSize(), implicitScope);
102 dstSegment = MemorySegment.allocateNative(size, SPECIES.vectorByteSize(), implicitScope);
103
104 srcAddress = srcSegment.address();
105 dstAddress = dstSegment.address();
106
107 this.longSize = longSize;
108
109 a = new short[size];
110 b = new short[size];
111 c = new short[size];
112 }
113
114 @Benchmark
115 public void array() {
116 for (int i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
117 var v = ShortVector.fromArray(SPECIES, srcArray, i);
118 v.intoArray(dstArray, i);
119 }
120 }
121
122 @Benchmark
123 public void vectAdd1() {
124 var a = this.a;
125 var b = this.b;
126 var c = this.c;
127
128 for (int i = 0; i < a.length; i += SPECIES.length()) {
129 ShortVector av = ShortVector.fromArray(SPECIES, a, i);
130 ShortVector bv = ShortVector.fromArray(SPECIES, b, i);
131 av.lanewise(VectorOperators.ADD, bv).intoArray(c, i);
132 }
133 }
134
135 @Benchmark
136 public void vectAdd2() {
137 var a = this.a;
138 var b = this.b;
139 var c = this.c;
140
141 for (int i = 0; i < a.length/SPECIES.length(); i++) {
142 ShortVector av = ShortVector.fromArray(SPECIES, a, (i*SPECIES.length()));
143 ShortVector bv = ShortVector.fromArray(SPECIES, b, (i*SPECIES.length()));
144 av.lanewise(VectorOperators.ADD, bv).intoArray(c, (i*SPECIES.length()));
145 }
146 }
147
148 @Benchmark
149 public void arrayAdd() {
150 for (int i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
151 var v = ShortVector.fromArray(SPECIES, srcArray, i);
152 v = v.add(v);
153 v.intoArray(dstArray, i);
154 }
155 }
156
157 @Benchmark
158 public void heapSegment() {
159 for (long i = 0; i < SPECIES.loopBound(longSize); i += SPECIES.length()) {
160 var v = ShortVector.fromMemorySegment(SPECIES, srcSegmentHeap, i, ByteOrder.nativeOrder());
161 v.intoMemorySegment(dstSegmentHeap, i, ByteOrder.nativeOrder());
162 }
163 }
164
165 @Benchmark
166 public void segmentNativeImplicit() {
167 for (long i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
168 var v = ShortVector.fromMemorySegment(SPECIES, srcSegment, i, ByteOrder.nativeOrder());
169 v.intoMemorySegment(dstSegment, i, ByteOrder.nativeOrder());
170 }
171 }
172
173 @Benchmark
174 public void segmentNativeConfined() {
175 try (final var scope = ResourceScope.newConfinedScope()) {
176 final var srcSegmentConfined = MemorySegment.ofAddress(srcAddress, size, scope);
177 final var dstSegmentConfined = MemorySegment.ofAddress(dstAddress, size, scope);
178
179 for (long i = 0; i < SPECIES.loopBound(srcArray.length); i += SPECIES.length()) {
180 var v = ShortVector.fromMemorySegment(SPECIES, srcSegmentConfined, i, ByteOrder.nativeOrder());
181 v.intoMemorySegment(dstSegmentConfined, i, ByteOrder.nativeOrder());
182 }
183 }
184 }
185 }