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 LotsOfCycles
26 *
27 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=10000 -XX:+ShenandoahDegeneratedGC LotsOfCycles
28 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=10000 -XX:-ShenandoahDegeneratedGC LotsOfCycles
29 *
30 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 -XX:+ShenandoahOOMDuringEvacALot LotsOfCycles
31 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 -XX:+ShenandoahAllocFailureALot LotsOfCycles
32 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 LotsOfCycles
33 *
34 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=adaptive -Dtarget=10000 LotsOfCycles
35 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=static -Dtarget=10000 LotsOfCycles
36 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=compact -Dtarget=1000 LotsOfCycles
37 */
38
39 public class LotsOfCycles {
40
41 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation, around 1K cycles to handle
42 static final long STRIDE = 100_000;
43
44 static volatile Object sink;
45
46 public static void main(String[] args) throws Exception {
47 long count = TARGET_MB * 1024 * 1024 / 16;
48 for (long c = 0; c < count; c += STRIDE) {
49 for (long s = 0; s < STRIDE; s++) {
50 sink = new Object();
51 }
52 Thread.sleep(1);
53 }
54 }
55
56 }
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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 TestLotsOfCycles
26 * @key gc
27 *
28 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=10000 -XX:+ShenandoahDegeneratedGC TestLotsOfCycles
29 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=10000 -XX:-ShenandoahDegeneratedGC TestLotsOfCycles
30 *
31 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 -XX:+ShenandoahOOMDuringEvacALot TestLotsOfCycles
32 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 -XX:+ShenandoahAllocFailureALot TestLotsOfCycles
33 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 TestLotsOfCycles
34 *
35 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=adaptive -Dtarget=10000 TestLotsOfCycles
36 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=static -Dtarget=10000 TestLotsOfCycles
37 * @run main/othervm/timeout=480 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=compact -Dtarget=1000 TestLotsOfCycles
38 */
39
40 public class TestLotsOfCycles {
41
42 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation, around 1K cycles to handle
43 static final long STRIDE = 100_000;
44
45 static volatile Object sink;
46
47 public static void main(String[] args) throws Exception {
48 long count = TARGET_MB * 1024 * 1024 / 16;
49 for (long c = 0; c < count; c += STRIDE) {
50 for (long s = 0; s < STRIDE; s++) {
51 sink = new Object();
52 }
53 Thread.sleep(1);
54 }
55 }
56
57 }
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