1 /*
2 * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.
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 HeapUncommit
26 * @summary Acceptance tests: collector can withstand allocation
27 *
28 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=passive -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify HeapUncommit
29 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=passive -XX:ShenandoahUncommitDelay=0 -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify HeapUncommit
30 *
31 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify HeapUncommit
32 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=static -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify HeapUncommit
33 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=compact -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify HeapUncommit
34 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=aggressive -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify HeapUncommit
35 *
36 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=passive -XX:ShenandoahUncommitDelay=0 HeapUncommit
37 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahUncommitDelay=0 HeapUncommit
38 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=static -XX:ShenandoahUncommitDelay=0 HeapUncommit
39 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=compact -XX:ShenandoahUncommitDelay=0 HeapUncommit
40 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=aggressive -XX:ShenandoahUncommitDelay=0 HeapUncommit
41 */
42
43 import java.util.Random;
44
45 public class HeapUncommit {
46
47 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation
48
49 static volatile Object sink;
50
51 public static void main(String[] args) throws Exception {
52 final int min = 0;
53 final int max = 384*1024;
54 long count = TARGET_MB * 1024 * 1024 / (16 + 4*(min + (max-min)/2));
55
56 Random r = new Random();
57 for (long c = 0; c < count; c++) {
58 sink = new int[min + r.nextInt(max-min)];
59 }
60 }
61
62 }
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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 TestHeapUncommit
26 * @summary Acceptance tests: collector can withstand allocation
27 * @key gc
28 *
29 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=passive -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify TestHeapUncommit
30 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=passive -XX:ShenandoahUncommitDelay=0 -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify TestHeapUncommit
31 *
32 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify TestHeapUncommit
33 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=static -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify TestHeapUncommit
34 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=compact -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify TestHeapUncommit
35 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=aggressive -XX:ShenandoahUncommitDelay=0 -XX:+ShenandoahVerify TestHeapUncommit
36 *
37 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=passive -XX:ShenandoahUncommitDelay=0 TestHeapUncommit
38 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahUncommitDelay=0 TestHeapUncommit
39 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=static -XX:ShenandoahUncommitDelay=0 TestHeapUncommit
40 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=compact -XX:ShenandoahUncommitDelay=0 TestHeapUncommit
41 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -XX:+ShenandoahUncommit -XX:ShenandoahGCHeuristics=aggressive -XX:ShenandoahUncommitDelay=0 TestHeapUncommit
42 */
43
44 import java.util.Random;
45
46 public class TestHeapUncommit {
47
48 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation
49
50 static volatile Object sink;
51
52 public static void main(String[] args) throws Exception {
53 final int min = 0;
54 final int max = 384 * 1024;
55 long count = TARGET_MB * 1024 * 1024 / (16 + 4 * (min + (max - min) / 2));
56
57 Random r = new Random();
58 for (long c = 0; c < count; c++) {
59 sink = new int[min + r.nextInt(max - min)];
60 }
61 }
62
63 }
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