1 /*
2 * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 /*
25 * @test TestHumongousThreshold
26 * @key gc
27 *
28 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
29 * -XX:+ShenandoahVerify
30 * TestHumongousThreshold
31 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
32 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
33 * TestHumongousThreshold
34 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
35 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
36 * TestHumongousThreshold
37 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
38 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
39 * TestHumongousThreshold
40 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
41 * -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
42 * TestHumongousThreshold
43 *
44 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
45 * -XX:-UseTLAB -XX:+ShenandoahVerify
46 * TestHumongousThreshold
47 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
48 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
49 * TestHumongousThreshold
50 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
51 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
52 * TestHumongousThreshold
53 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
54 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
55 * TestHumongousThreshold
56 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
57 * -XX:-UseTLAB -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
58 * TestHumongousThreshold
59 *
60 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
61 * -XX:ShenandoahHumongousThreshold=90 -XX:ShenandoahGCHeuristics=aggressive
62 * TestHumongousThreshold
63 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
64 * -XX:-UseTLAB -XX:ShenandoahHumongousThreshold=90 -XX:ShenandoahGCHeuristics=aggressive
65 * TestHumongousThreshold
66 */
67
68 /*
69 * @test TestHumongousThreshold
70 * @key gc
71 * @requires (vm.bits == "64")
72 *
73 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
74 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify
75 * TestHumongousThreshold
76 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
77 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
78 * TestHumongousThreshold
79 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
80 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
81 * TestHumongousThreshold
82 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
83 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
84 * TestHumongousThreshold
85 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
86 * -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
87 * TestHumongousThreshold
88 *
89 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
90 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify
91 * TestHumongousThreshold
92 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
93 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=50
94 * TestHumongousThreshold
95 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
96 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=90
97 * TestHumongousThreshold
98 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
99 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=99
100 * TestHumongousThreshold
101 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g
102 * -XX:-UseTLAB -XX:ObjectAlignmentInBytes=16 -XX:+ShenandoahVerify -XX:ShenandoahHumongousThreshold=100
103 * TestHumongousThreshold
104 */
105
106 import java.util.Random;
107
108 public class TestHumongousThreshold {
109
110 static final long TARGET_MB = Long.getLong("target", 20_000); // 20 Gb allocation
111
112 static volatile Object sink;
113
114 public static void main(String[] args) throws Exception {
115 final int min = 0;
116 final int max = 384 * 1024;
117 long count = TARGET_MB * 1024 * 1024 / (16 + 4 * (min + (max - min) / 2));
118
119 Random r = new Random();
120 for (long c = 0; c < count; c++) {
121 sink = new int[min + r.nextInt(max - min)];
122 }
123 }
124
125 }