1 /*
2 * Copyright (c) 2020, Red Hat, Inc. 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
25 /*
26 * @test id=passive
27 * @key randomness
28 * @summary Test that Shenandoah is able to work with(out) resizeable TLABs
29 * @requires vm.gc.Shenandoah
30 * @library /test/lib
31 *
32 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
33 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
34 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
35 * -XX:+ShenandoahVerify
36 * -XX:+ResizeTLAB
37 * TestResizeTLAB
38 *
39 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
40 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
41 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
42 * -XX:+ShenandoahVerify
43 * -XX:-ResizeTLAB
44 * TestResizeTLAB
45 *
46 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
47 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
48 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
49 * -XX:+ShenandoahVerify
50 * -XX:+ResizeTLAB
51 * TestResizeTLAB
52 *
53 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
54 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
55 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
56 * -XX:+ShenandoahVerify
57 * -XX:-ResizeTLAB
58 * TestResizeTLAB
59 */
60
61 /*
62 * @test id=aggressive
63 * @key randomness
64 * @summary Test that Shenandoah is able to work with(out) resizeable TLABs
65 * @requires vm.gc.Shenandoah
66 * @library /test/lib
67 *
68 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
69 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
70 * -XX:+ShenandoahVerify
71 * -XX:+ResizeTLAB
72 * TestResizeTLAB
73 *
74 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
75 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
76 * -XX:+ShenandoahVerify
77 * -XX:-ResizeTLAB
78 * TestResizeTLAB
79 */
80
81 /*
82 * @test id=adaptive
83 * @key randomness
84 * @summary Test that Shenandoah is able to work with(out) resizeable TLABs
85 * @requires vm.gc.Shenandoah
86 * @library /test/lib
87 *
88 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
89 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
90 * -XX:+ShenandoahVerify
91 * -XX:+ResizeTLAB
92 * TestResizeTLAB
93 *
94 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
95 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
96 * -XX:+ShenandoahVerify
97 * -XX:-ResizeTLAB
98 * TestResizeTLAB
99 */
100
101 /*
102 * @test id=static
103 * @key randomness
104 * @summary Test that Shenandoah is able to work with(out) resizeable TLABs
105 * @requires vm.gc.Shenandoah
106 * @library /test/lib
107 *
108 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
109 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
110 * -XX:+ShenandoahVerify
111 * -XX:+ResizeTLAB
112 * TestResizeTLAB
113 *
114 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
115 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
116 * -XX:+ShenandoahVerify
117 * -XX:-ResizeTLAB
118 * TestResizeTLAB
119 */
120
121 /*
122 * @test id=compact
123 * @key randomness
124 * @summary Test that Shenandoah is able to work with(out) resizeable TLABs
125 * @requires vm.gc.Shenandoah
126 * @library /test/lib
127 *
128 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
129 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
130 * -XX:+ShenandoahVerify
131 * -XX:+ResizeTLAB
132 * TestResizeTLAB
133 *
134 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
135 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
136 * -XX:+ShenandoahVerify
137 * -XX:-ResizeTLAB
138 * TestResizeTLAB
139 */
140
141 import java.util.Random;
142 import jdk.test.lib.Utils;
143
144 public class TestResizeTLAB {
145
146 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation
147
148 static volatile Object sink;
149
150 public static void main(String[] args) throws Exception {
151 final int min = 0;
152 final int max = 384 * 1024;
153 long count = TARGET_MB * 1024 * 1024 / (16 + 4 * (min + (max - min) / 2));
154
155 Random r = Utils.getRandomInstance();
156 for (long c = 0; c < count; c++) {
157 sink = new int[min + r.nextInt(max - min)];
158 }
159 }
160
161 }