1 /*
2 * Copyright (c) 2016, 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 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
34 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
35 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
36 * TestAllocIntArrays
37 *
38 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
39 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
40 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
41 * TestAllocIntArrays
42 *
43 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
44 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
45 * -XX:+ShenandoahDegeneratedGC
46 * TestAllocIntArrays
47 *
48 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
49 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
50 * -XX:-ShenandoahDegeneratedGC
51 * TestAllocIntArrays
52 */
53
54 /*
55 * @test id=aggressive
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 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
62 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
63 * -XX:+ShenandoahOOMDuringEvacALot -XX:+ShenandoahVerify
64 * TestAllocIntArrays
65 *
66 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
67 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
68 * -XX:+ShenandoahAllocFailureALot -XX:+ShenandoahVerify
69 * TestAllocIntArrays
70 *
71 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
72 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
73 * -XX:+ShenandoahOOMDuringEvacALot
74 * TestAllocIntArrays
75 *
76 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
77 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
78 * -XX:+ShenandoahAllocFailureALot
79 * TestAllocIntArrays
80 *
81 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
82 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
83 * TestAllocIntArrays
84 */
85
86 /*
87 * @test id=adaptive
88 * @summary Acceptance tests: collector can withstand allocation
89 * @key randomness
90 * @requires vm.gc.Shenandoah
91 * @library /test/lib
92 *
93 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
94 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
95 * -XX:+ShenandoahVerify
96 * TestAllocIntArrays
97 *
98 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
99 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
100 * TestAllocIntArrays
101 */
102
103 /*
104 * @test id=generational
105 * @summary Acceptance tests: collector can withstand allocation
106 * @key randomness
107 * @requires vm.gc.Shenandoah
108 * @library /test/lib
109 *
110 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
111 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahGCMode=generational
112 * -XX:+ShenandoahVerify
113 * TestAllocIntArrays
114 *
115 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
116 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahGCMode=generational
117 * TestAllocIntArrays
118 */
119
120 /*
121 * @test id=static
122 * @summary Acceptance tests: collector can withstand allocation
123 * @key randomness
124 * @requires vm.gc.Shenandoah
125 * @library /test/lib
126 *
127 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
128 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=static
129 * TestAllocIntArrays
130 */
131
132 /*
133 * @test id=compact
134 * @summary Acceptance tests: collector can withstand allocation
135 * @key randomness
136 * @requires vm.gc.Shenandoah
137 * @library /test/lib
138 *
139 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
140 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
141 * TestAllocIntArrays
142 */
143
144 /*
145 * @test id=no-tlab
146 * @summary Acceptance tests: collector can withstand allocation
147 * @key randomness
148 * @requires vm.gc.Shenandoah
149 * @library /test/lib
150 *
151 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -Xms1g
152 * -XX:+UseShenandoahGC
153 * -XX:-UseTLAB -XX:+ShenandoahVerify
154 * TestAllocIntArrays
155 */
156 import java.util.Random;
157 import jdk.test.lib.Utils;
158
159 public class TestAllocIntArrays {
160
161 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation
162
163 static volatile Object sink;
164
165 public static void main(String[] args) throws Exception {
166 final int min = 0;
167 final int max = 384 * 1024;
168 // Each allocated int array is assumed to consume 16 bytes for alignment and header, plus
169 // an average of 4 * the average number of elements in the array.
170 long count = TARGET_MB * 1024 * 1024 / (16 + 4 * (min + (max - min) / 2));
171
172 Random r = Utils.getRandomInstance();
173 // Repeatedly, allocate an array of int having between 0 and 384K elements, until we have
174 // allocated approximately TARGET_MB. The largest allocated array consumes 384K*4 + 16, which is 1.5 M,
175 // which is well below the heap size of 1g.
176 for (long c = 0; c < count; c++) {
177 sink = new int[min + r.nextInt(max - min)];
178 }
179 }
180
181 }