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 TestSieveObjects
27 * @summary Acceptance tests: collector can deal with retained objects
28 * @key gc
29 * @requires vm.gc.Shenandoah & !vm.graal.enabled
30 *
31 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
32 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
33 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
34 * TestSieveObjects
35 *
36 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
37 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
38 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
39 * TestSieveObjects
40 *
41 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
42 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
43 * -XX:+ShenandoahDegeneratedGC
44 * TestSieveObjects
45 *
46 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
47 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
48 * -XX:-ShenandoahDegeneratedGC
49 * TestSieveObjects
50 */
51
52 /*
53 * @test TestSieveObjects
54 * @summary Acceptance tests: collector can deal with retained objects
55 * @key gc
56 * @requires vm.gc.Shenandoah & !vm.graal.enabled
57 *
58 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
59 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
60 * -XX:+ShenandoahOOMDuringEvacALot
61 * TestSieveObjects
62 *
63 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
64 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
65 * -XX:+ShenandoahAllocFailureALot
66 * TestSieveObjects
67 *
68 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
69 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
70 * TestSieveObjects
71 *
72 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
73 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
74 * -XX:+ShenandoahVerify
75 * TestSieveObjects
76 *
77 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
78 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
79 * TestSieveObjects
80 *
81 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
82 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
83 * TestSieveObjects
84 *
85 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
86 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
87 * TestSieveObjects
88 *
89 * @run main/othervm/timeout=240 -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
90 * -XX:+UseShenandoahGC
91 * -XX:-UseTLAB -XX:+ShenandoahVerify
92 * TestSieveObjects
93 */
94
95 /*
96 * @test TestSieveObjects
97 * @summary Acceptance tests: collector can deal with retained objects
98 * @key gc
99 * @requires vm.gc.Shenandoah & !vm.graal.enabled
100 *
101 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
102 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu -XX:ShenandoahGCHeuristics=aggressive
103 * -XX:+ShenandoahOOMDuringEvacALot
104 * TestSieveObjects
105 *
106 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
107 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu -XX:ShenandoahGCHeuristics=aggressive
108 * -XX:+ShenandoahAllocFailureALot
109 * TestSieveObjects
110 *
111 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
112 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu -XX:ShenandoahGCHeuristics=aggressive
113 * TestSieveObjects
114 *
115 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
116 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
117 * -XX:+ShenandoahVerify
118 * TestSieveObjects
119 *
120 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
121 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
122 * TestSieveObjects
123 */
124
125 import java.util.concurrent.ThreadLocalRandom;
126
127 public class TestSieveObjects {
128
129 static final int COUNT = 100_000_000;
130 static final int WINDOW = 1_000_000;
131 static final int PAYLOAD = 100;
132
133 static final MyObject[] arr = new MyObject[WINDOW];
134
135 public static void main(String[] args) throws Exception {
136 int rIdx = 0;
137 for (int c = 0; c < COUNT; c++) {
138 MyObject v = arr[rIdx];
139 if (v != null) {
140 if (v.x != rIdx) {
141 throw new IllegalStateException("Illegal value at index " + rIdx + ": " + v.x);
142 }
143 if (ThreadLocalRandom.current().nextInt(1000) > 100) {
144 arr[rIdx] = null;
145 }
146 } else {
147 if (ThreadLocalRandom.current().nextInt(1000) > 500) {
148 arr[rIdx] = new MyObject(rIdx);
149 }
150 }
151 rIdx++;
152 if (rIdx >= WINDOW) {
153 rIdx = 0;
154 }
155 }
156 }
157
158 public static class MyObject {
159 public int x;
160 public byte[] payload;
161
162 public MyObject(int x) {
163 this.x = x;
164 this.payload = new byte[PAYLOAD];
165 }
166 }
167
168 }