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 TestGCThreadGroups
26 * @summary Test Shenandoah GC uses concurrent/parallel threads correctly
27 *
28 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -Dtarget=1000 TestGCThreadGroups
29 * @run main/othervm -XX:+UseShenandoahGC -XX:-UseDynamicNumberOfGCThreads -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -Dtarget=1000 TestGCThreadGroups
30 * @run main/othervm -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+ForceDynamicNumberOfGCThreads -XX:+UnlockExperimentalVMOptions -Xmx16m -Dtarget=1000 TestGCThreadGroups
31 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=1000 TestGCThreadGroups
32 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=adaptive -Dtarget=1000 TestGCThreadGroups
33 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=static -Dtarget=1000 TestGCThreadGroups
34 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=compact -Dtarget=100 TestGCThreadGroups
35 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=100 TestGCThreadGroups
36 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=1000 TestGCThreadGroups
37 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=adaptive -Dtarget=1000 TestGCThreadGroups
38 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=static -Dtarget=1000 TestGCThreadGroups
39 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=compact -Dtarget=100 TestGCThreadGroups
40 * @run main/othervm -XX:+UseShenandoahGC -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=100 TestGCThreadGroups
41 */
42
43 public class TestGCThreadGroups {
44
45 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation, around 1K cycles to handle
46 static final long STRIDE = 100_000;
47
48 static volatile Object sink;
49
50 public static void main(String[] args) throws Exception {
51 long count = TARGET_MB * 1024 * 1024 / 16;
52 for (long c = 0; c < count; c += STRIDE) {
53 for (long s = 0; s < STRIDE; s++) {
54 sink = new Object();
55 }
56 Thread.sleep(1);
57 }
58 }
59
60 }
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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 TestGCThreadGroups
26 * @summary Test Shenandoah GC uses concurrent/parallel threads correctly
27 * @key gc
28 *
29 * @run main/othervm -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -Dtarget=1000 TestGCThreadGroups
30 * @run main/othervm -XX:-UseDynamicNumberOfGCThreads -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -Dtarget=1000 TestGCThreadGroups
31 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+ForceDynamicNumberOfGCThreads -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -Dtarget=1000 TestGCThreadGroups
32 * @run main/othervm -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=1000 TestGCThreadGroups
33 * @run main/othervm -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=adaptive -Dtarget=1000 TestGCThreadGroups
34 * @run main/othervm -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=static -Dtarget=1000 TestGCThreadGroups
35 * @run main/othervm -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=compact -Dtarget=100 TestGCThreadGroups
36 * @run main/othervm -XX:ConcGCThreads=2 -XX:ParallelGCThreads=4 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=100 TestGCThreadGroups
37 * @run main/othervm -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=1000 TestGCThreadGroups
38 * @run main/othervm -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=adaptive -Dtarget=1000 TestGCThreadGroups
39 * @run main/othervm -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=static -Dtarget=1000 TestGCThreadGroups
40 * @run main/othervm -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=compact -Dtarget=100 TestGCThreadGroups
41 * @run main/othervm -XX:ConcGCThreads=4 -XX:ParallelGCThreads=2 -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=100 TestGCThreadGroups
42 */
43
44 public class TestGCThreadGroups {
45
46 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation, around 1K cycles to handle
47 static final long STRIDE = 100_000;
48
49 static volatile Object sink;
50
51 public static void main(String[] args) throws Exception {
52 long count = TARGET_MB * 1024 * 1024 / 16;
53 for (long c = 0; c < count; c += STRIDE) {
54 for (long s = 0; s < STRIDE; s++) {
55 sink = new Object();
56 }
57 Thread.sleep(1);
58 }
59 }
60
61 }
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