1 /*
2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. 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 */
25 * @test TestDynamicNumberOfGCThreads
26 * @bug 8017462
27 * @summary Ensure that UseDynamicNumberOfGCThreads runs
28 * @requires vm.gc=="null"
29 * @key gc
30 * @modules java.base/jdk.internal.misc
31 * @library /test/lib
32 */
33
34 import jdk.test.lib.process.OutputAnalyzer;
35 import jdk.test.lib.process.ProcessTools;
36
37 public class TestDynamicNumberOfGCThreads {
38 public static void main(String[] args) throws Exception {
39
40 testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
41
42 testDynamicNumberOfGCThreads("UseG1GC");
43
44 testDynamicNumberOfGCThreads("UseParallelGC");
45 }
46
47 private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
48 output.shouldHaveExitValue(0); // test should run succesfully
49 output.shouldContain("new_active_workers");
50 }
51
52 private static void testDynamicNumberOfGCThreads(String gcFlag) throws Exception {
53 // UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
54 String[] baseArgs = {"-XX:+" + gcFlag, "-Xmx10M", "-XX:+UseDynamicNumberOfGCThreads", "-Xlog:gc+task=trace", GCTest.class.getName()};
55
56 // Base test with gc and +UseDynamicNumberOfGCThreads:
57 ProcessBuilder pb_enabled = ProcessTools.createJavaProcessBuilder(baseArgs);
58 verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
59
60 // Ensure it also works on uniprocessors or if user specifies -XX:ParallelGCThreads=1:
61 String[] extraArgs = {"-XX:+UnlockDiagnosticVMOptions", "-XX:+ForceDynamicNumberOfGCThreads", "-XX:ParallelGCThreads=1"};
62 String[] finalArgs = new String[baseArgs.length + extraArgs.length];
63 System.arraycopy(extraArgs, 0, finalArgs, 0, extraArgs.length);
64 System.arraycopy(baseArgs, 0, finalArgs, extraArgs.length, baseArgs.length);
65 pb_enabled = ProcessTools.createJavaProcessBuilder(finalArgs);
66 verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
67
68 // Turn on parallel reference processing
69 String[] parRefProcArg = {"-XX:+ParallelRefProcEnabled", "-XX:-ShowMessageBoxOnError"};
70 String[] parRefArgs = new String[baseArgs.length + parRefProcArg.length];
71 System.arraycopy(parRefProcArg, 0, parRefArgs, 0, parRefProcArg.length);
72 System.arraycopy(baseArgs, 0, parRefArgs, parRefProcArg.length, baseArgs.length);
73 pb_enabled = ProcessTools.createJavaProcessBuilder(parRefArgs);
74 verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
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1 /*
2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. 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 */
25 * @test TestDynamicNumberOfGCThreads
26 * @bug 8017462
27 * @summary Ensure that UseDynamicNumberOfGCThreads runs
28 * @requires vm.gc=="null"
29 * @key gc
30 * @modules java.base/jdk.internal.misc
31 * @library /test/lib
32 */
33
34 import jdk.test.lib.process.OutputAnalyzer;
35 import jdk.test.lib.process.ProcessTools;
36
37 public class TestDynamicNumberOfGCThreads {
38 public static void main(String[] args) throws Exception {
39
40 testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
41
42 testDynamicNumberOfGCThreads("UseG1GC");
43
44 testDynamicNumberOfGCThreads("UseParallelGC");
45
46 testDynamicNumberOfGCThreads("UseShenandoahGC");
47 }
48
49 private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
50 output.shouldHaveExitValue(0); // test should run succesfully
51 output.shouldContain("new_active_workers");
52 }
53
54 private static void testDynamicNumberOfGCThreads(String gcFlag) throws Exception {
55 // UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
56 String[] baseArgs = {"-XX:+UnlockExperimentalVMOptions", "-XX:+" + gcFlag, "-Xmx10M", "-XX:+UseDynamicNumberOfGCThreads", "-Xlog:gc+task=trace", GCTest.class.getName()};
57
58 // Base test with gc and +UseDynamicNumberOfGCThreads:
59 ProcessBuilder pb_enabled = ProcessTools.createJavaProcessBuilder(baseArgs);
60 verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
61
62 // Ensure it also works on uniprocessors or if user specifies -XX:ParallelGCThreads=1:
63 String[] extraArgs = {"-XX:+UnlockDiagnosticVMOptions", "-XX:+ForceDynamicNumberOfGCThreads", "-XX:ParallelGCThreads=1"};
64 String[] finalArgs = new String[baseArgs.length + extraArgs.length];
65 System.arraycopy(extraArgs, 0, finalArgs, 0, extraArgs.length);
66 System.arraycopy(baseArgs, 0, finalArgs, extraArgs.length, baseArgs.length);
67 pb_enabled = ProcessTools.createJavaProcessBuilder(finalArgs);
68 verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
69
70 // Turn on parallel reference processing
71 String[] parRefProcArg = {"-XX:+ParallelRefProcEnabled", "-XX:-ShowMessageBoxOnError"};
72 String[] parRefArgs = new String[baseArgs.length + parRefProcArg.length];
73 System.arraycopy(parRefProcArg, 0, parRefArgs, 0, parRefProcArg.length);
74 System.arraycopy(baseArgs, 0, parRefArgs, parRefProcArg.length, baseArgs.length);
75 pb_enabled = ProcessTools.createJavaProcessBuilder(parRefArgs);
76 verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
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