1 /*
2 * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
3 * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 /*
27 * @test id=passive
28 * @summary Acceptance tests: collector can withstand allocation
29 * @key randomness
30 * @requires vm.gc.Shenandoah
31 * @library /test/lib
32 *
33 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
34 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
35 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
36 * TestHeapUncommit
37 *
38 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
39 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
40 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
41 * TestHeapUncommit
42 *
43 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
44 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
45 * -XX:+ShenandoahDegeneratedGC
46 * TestHeapUncommit
47 *
48 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
49 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
50 * -XX:-ShenandoahDegeneratedGC
51 * TestHeapUncommit
52 */
53
54 /*
55 * @test id=adaptive
56 * @summary Acceptance tests: collector can withstand allocation
57 * @key randomness
58 * @requires vm.gc.Shenandoah
59 * @library /test/lib
60 *
61 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
62 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
63 * -XX:+ShenandoahVerify
64 * TestHeapUncommit
65 *
66 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
67 * -XX:+UseShenandoahGC
68 * -XX:-UseTLAB -XX:+ShenandoahVerify
69 * TestHeapUncommit
70 *
71 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
72 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
73 * TestHeapUncommit
74 *
75 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
76 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
77 * TestHeapUncommit
78 *
79 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
80 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
81 * TestHeapUncommit
82 *
83 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
84 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
85 * TestHeapUncommit
86 */
87
88 /*
89 * @test id=generational
90 * @summary Acceptance tests: collector can withstand allocation
91 * @key randomness
92 * @requires vm.gc.Shenandoah
93 * @library /test/lib
94 *
95 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
96 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahGCMode=generational
97 * -XX:+ShenandoahVerify
98 * TestHeapUncommit
99 *
100 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
101 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahGCMode=generational
102 * -XX:-UseTLAB -XX:+ShenandoahVerify
103 * TestHeapUncommit
104 *
105 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0
106 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahGCMode=generational
107 * TestHeapUncommit
108 */
109
110 /*
111 * @test id=default-lp
112 * @key randomness
113 * @requires vm.gc.Shenandoah
114 * @requires vm.bits == "64"
115 * @library /test/lib
116 *
117 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 -XX:+UseLargePages
118 * -XX:+UseShenandoahGC
119 * -XX:+ShenandoahVerify
120 * TestHeapUncommit
121 *
122 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 -XX:+UseLargePages
123 * -XX:+UseShenandoahGC
124 * -XX:-UseTLAB -XX:+ShenandoahVerify
125 * TestHeapUncommit
126 *
127 * @run main/othervm -Xmx1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+ShenandoahUncommit -XX:ShenandoahUncommitDelay=0 -XX:+UseLargePages
128 * -XX:+UseShenandoahGC
129 * TestHeapUncommit
130 */
131
132 import java.util.Random;
133 import jdk.test.lib.Utils;
134
135 public class TestHeapUncommit {
136
137 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation
138
139 static volatile Object sink;
140
141 public static void main(String[] args) throws Exception {
142 final int min = 0;
143 final int max = 384 * 1024;
144 long count = TARGET_MB * 1024 * 1024 / (16 + 4 * (min + (max - min) / 2));
145
146 Random r = Utils.getRandomInstance();
147 for (long c = 0; c < count; c++) {
148 sink = new int[min + r.nextInt(max - min)];
149 }
150 }
151
152 }