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 TestRetainObjects
27 * @summary Acceptance tests: collector can deal with retained objects
28 * @requires vm.gc.Shenandoah & !vm.graal.enabled
29 *
30 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
31 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
32 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
33 * TestRetainObjects
34 *
35 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
36 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
37 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
38 * TestRetainObjects
39 *
40 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
41 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
42 * -XX:+ShenandoahDegeneratedGC
43 * TestRetainObjects
44 *
45 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
46 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
47 * -XX:-ShenandoahDegeneratedGC
48 * TestRetainObjects
49 */
50
51 /*
52 * @test TestRetainObjects
53 * @summary Acceptance tests: collector can deal with retained objects
54 * @requires vm.gc.Shenandoah & !vm.graal.enabled
55 *
56 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
57 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
58 * -XX:+ShenandoahOOMDuringEvacALot
59 * TestRetainObjects
60 *
61 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
62 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
63 * -XX:+ShenandoahAllocFailureALot
64 * TestRetainObjects
65 *
66 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
67 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
68 * TestRetainObjects
69 *
70 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
71 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
72 * -XX:+ShenandoahVerify
73 * TestRetainObjects
74 *
75 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
76 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
77 * TestRetainObjects
78 *
79 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
80 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
81 * TestRetainObjects
82 *
83 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
84 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
85 * TestRetainObjects
86 *
87 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
88 * -XX:+UseShenandoahGC
89 * -XX:-UseTLAB -XX:+ShenandoahVerify
90 * TestRetainObjects
91 */
92
93 /*
94 * @test TestRetainObjects
95 * @summary Acceptance tests: collector can deal with retained objects
96 * @requires vm.gc.Shenandoah & !vm.graal.enabled
97 *
98 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
99 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu -XX:ShenandoahGCHeuristics=aggressive
100 * -XX:+ShenandoahOOMDuringEvacALot
101 * TestRetainObjects
102 *
103 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
104 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu -XX:ShenandoahGCHeuristics=aggressive
105 * -XX:+ShenandoahAllocFailureALot
106 * TestRetainObjects
107 *
108 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
109 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu -XX:ShenandoahGCHeuristics=aggressive
110 * TestRetainObjects
111 *
112 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
113 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
114 * -XX:+ShenandoahVerify
115 * TestRetainObjects
116 *
117 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
118 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
119 * TestRetainObjects
120 */
121
122 public class TestRetainObjects {
123
124 static final int COUNT = 10_000_000;
125 static final int WINDOW = 10_000;
126
127 static final String[] reachable = new String[WINDOW];
128
129 public static void main(String[] args) throws Exception {
130 int rIdx = 0;
131 for (int c = 0; c < COUNT; c++) {
132 reachable[rIdx] = ("LargeString" + c);
133 rIdx++;
134 if (rIdx >= WINDOW) {
135 rIdx = 0;
136 }
137 }
138 }
139
140 }