1 /*
2 * Copyright (c) 2017, 2018, 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 TestHumongousThreshold
27 * @key randomness
28 * @requires vm.gc.Shenandoah
29 * @library /test/lib
30 *
31 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
32 * -XX:+ShenandoahVerify
33 * TestHumongousThreshold
34 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
35 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
36 * TestHumongousThreshold
37 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
38 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
39 * TestHumongousThreshold
40 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
41 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
42 * TestHumongousThreshold
43 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
44 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
45 * TestHumongousThreshold
46 *
47 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
48 * -XX:-UseTLAB -XX:+ShenandoahVerify
49 * TestHumongousThreshold
50 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
51 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
52 * TestHumongousThreshold
53 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
54 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
55 * TestHumongousThreshold
56 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
57 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
58 * TestHumongousThreshold
59 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
60 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
61 * TestHumongousThreshold
62 *
63 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
64 * -XX:ShenandoahHumongousThreshold=90 -XX:ShenandoahGCHeuristics=aggressive
65 * TestHumongousThreshold
66 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
67 * -XX:-UseTLAB -XX:ShenandoahHumongousThreshold=90 -XX:ShenandoahGCHeuristics=aggressive
68 * TestHumongousThreshold
69 */
70
71 /*
72 * @test TestHumongousThreshold
73 * @key randomness
74 * @requires vm.gc.Shenandoah
75 * @requires vm.bits == "64"
76 * @library /test/lib
77 *
78 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
79 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify
80 * TestHumongousThreshold
81 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
82 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
83 * TestHumongousThreshold
84 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
85 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
86 * TestHumongousThreshold
87 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
88 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
89 * TestHumongousThreshold
90 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
91 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
92 * TestHumongousThreshold
93 *
94 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
95 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify
96 * TestHumongousThreshold
97 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
98 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
99 * TestHumongousThreshold
100 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
101 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
102 * TestHumongousThreshold
103 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
104 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
105 * TestHumongousThreshold
106 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
107 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
108 * TestHumongousThreshold
109 */
110
111 import java.util.Random;
112 import jdk.test.lib.Utils;
113
114 public class TestHumongousThreshold {
115
116 static final long TARGET_MB = Long.getLong("target", 20_000); // 20 Gb allocation
117
118 static volatile Object sink;
119
120 public static void main(String[] args) throws Exception {
121 final int min = 0;
122 final int max = 384 * 1024;
123 long count = TARGET_MB * 1024 * 1024 / (16 + 4 * (min + (max - min) / 2));
124
125 Random r = Utils.getRandomInstance();
126 for (long c = 0; c < count; c++) {
127 sink = new int[min + r.nextInt(max - min)];
128 }
129 }
130
131 }