1 /*
2 * Copyright (c) 2020, 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.valhalla.acmp.array;
24
25 import org.openjdk.bench.valhalla.types.R64long;
26 import org.openjdk.jmh.annotations.Benchmark;
27 import org.openjdk.jmh.annotations.BenchmarkMode;
28 import org.openjdk.jmh.annotations.CompilerControl;
29 import org.openjdk.jmh.annotations.Fork;
30 import org.openjdk.jmh.annotations.Measurement;
31 import org.openjdk.jmh.annotations.Mode;
32 import org.openjdk.jmh.annotations.OperationsPerInvocation;
33 import org.openjdk.jmh.annotations.OutputTimeUnit;
34 import org.openjdk.jmh.annotations.Scope;
35 import org.openjdk.jmh.annotations.State;
36 import org.openjdk.jmh.annotations.Warmup;
37
38 import java.util.concurrent.TimeUnit;
39
40 /*
41 * For proper results it should be executed:
42 * java -jar target/benchmarks.jar IdentityIsCmpBranch -wmb IdentityIsCmpBranch.equals050
43 */
44
45 @Fork(3)
46 @Warmup(iterations = 3, time = 1)
47 @Measurement(iterations = 5, time = 1)
48 @OutputTimeUnit(TimeUnit.NANOSECONDS)
49 @BenchmarkMode(Mode.AverageTime)
50 @State(Scope.Thread)
51 public class IdentityIsCmpBranch extends StatesR64long {
52
53 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
54 private static int cmp_Obj(Object[] objects1, Object[] objects2) {
55 int s = 0;
56 for (int i = 0; i < SIZE; i++) {
57 if (objects1[i] == objects2[i]) {
58 s += 1;
59 } else {
60 s -= 1;
61 }
62 }
63 return s;
64 }
65
66 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
67 private static int cmp_Ref(R64long[] objects1, R64long[] objects2) {
68 int s = 0;
69 for (int i = 0; i < SIZE; i++) {
70 if (objects1[i] == objects2[i]) {
71 s += 1;
72 } else {
73 s -= 1;
74 }
75 }
76 return s;
77 }
78
79 @Benchmark
80 @OperationsPerInvocation(SIZE)
81 @CompilerControl(CompilerControl.Mode.INLINE)
82 public int Obj_equals000(ObjState00 st) {
83 return cmp_Obj(st.arr1, st.arr2);
84 }
85
86 @Benchmark
87 @OperationsPerInvocation(SIZE)
88 @CompilerControl(CompilerControl.Mode.INLINE)
89 public int Obj_equals025(ObjState25 st) {
90 return cmp_Obj(st.arr1, st.arr2);
91 }
92
93 @Benchmark
94 @OperationsPerInvocation(SIZE)
95 @CompilerControl(CompilerControl.Mode.INLINE)
96 public int Obj_equals050(ObjState50 st) {
97 return cmp_Obj(st.arr1, st.arr2);
98 }
99
100 @Benchmark
101 @OperationsPerInvocation(SIZE)
102 @CompilerControl(CompilerControl.Mode.INLINE)
103 public int Obj_equals075(ObjState75 st) {
104 return cmp_Obj(st.arr1, st.arr2);
105 }
106
107 @Benchmark
108 @OperationsPerInvocation(SIZE)
109 @CompilerControl(CompilerControl.Mode.INLINE)
110 public int Obj_equals100(ObjState100 st) {
111 return cmp_Obj(st.arr1, st.arr2);
112 }
113
114 @Benchmark
115 @OperationsPerInvocation(SIZE)
116 @CompilerControl(CompilerControl.Mode.INLINE)
117 public int Ref_equals000(RefState00 st) {
118 return cmp_Ref(st.arr1, st.arr2);
119 }
120
121 @Benchmark
122 @OperationsPerInvocation(SIZE)
123 @CompilerControl(CompilerControl.Mode.INLINE)
124 public int Ref_equals025(RefState25 st) {
125 return cmp_Ref(st.arr1, st.arr2);
126 }
127
128 @Benchmark
129 @OperationsPerInvocation(SIZE)
130 @CompilerControl(CompilerControl.Mode.INLINE)
131 public int Ref_equals050(RefState50 st) {
132 return cmp_Ref(st.arr1, st.arr2);
133 }
134
135 @Benchmark
136 @OperationsPerInvocation(SIZE)
137 @CompilerControl(CompilerControl.Mode.INLINE)
138 public int Ref_equals075(RefState75 st) {
139 return cmp_Ref(st.arr1, st.arr2);
140 }
141
142 @Benchmark
143 @OperationsPerInvocation(SIZE)
144 @CompilerControl(CompilerControl.Mode.INLINE)
145 public int Ref_equals100(RefState100 st) {
146 return cmp_Ref(st.arr1, st.arr2);
147 }
148
149 }