test/gc/logging/TestGCId.java

changeset 6904
0982ec23da03
child 6909
418bb2c2b55a
equal deleted inserted replaced
6903:5d855d021755 6904:0982ec23da03
1 /*
2 * Copyright (c) 2014, 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 */
23
24 /*
25 * @test TestGCId
26 * @bug 8043607
27 * @summary Ensure that the GCId is logged
28 * @key gc
29 * @library /testlibrary
30 */
31
32 import com.oracle.java.testlibrary.ProcessTools;
33 import com.oracle.java.testlibrary.OutputAnalyzer;
34
35 public class TestGCId {
36 public static void main(String[] args) throws Exception {
37 testGCId("UseParallelGC", "PrintGC");
38 testGCId("UseParallelGC", "PrintGCDetails");
39
40 testGCId("UseG1GC", "PrintGC");
41 testGCId("UseG1GC", "PrintGCDetails");
42
43 testGCId("UseConcMarkSweepGC", "PrintGC");
44 testGCId("UseConcMarkSweepGC", "PrintGCDetails");
45
46 testGCId("UseSerialGC", "PrintGC");
47 testGCId("UseSerialGC", "PrintGCDetails");
48 }
49
50 private static void verifyContainsGCIDs(OutputAnalyzer output) {
51 output.shouldMatch("^#0: \\[");
52 output.shouldMatch("^#1: \\[");
53 output.shouldHaveExitValue(0);
54 }
55
56 private static void verifyContainsNoGCIDs(OutputAnalyzer output) {
57 output.shouldNotMatch("^#[0-9]+: \\[");
58 output.shouldHaveExitValue(0);
59 }
60
61 private static void testGCId(String gcFlag, String logFlag) throws Exception {
62 // GCID logging enabled
63 ProcessBuilder pb_enabled =
64 ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-XX:+" + logFlag, "-Xmx10M", "-XX:+PrintGCID", GCTest.class.getName());
65 verifyContainsGCIDs(new OutputAnalyzer(pb_enabled.start()));
66
67 // GCID logging disabled
68 ProcessBuilder pb_disabled =
69 ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-XX:+" + logFlag, "-Xmx10M", "-XX:-PrintGCID", GCTest.class.getName());
70 verifyContainsNoGCIDs(new OutputAnalyzer(pb_disabled.start()));
71
72 // GCID logging default
73 ProcessBuilder pb_default =
74 ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-XX:+" + logFlag, "-Xmx10M", GCTest.class.getName());
75 verifyContainsGCIDs(new OutputAnalyzer(pb_default.start()));
76 }
77
78 static class GCTest {
79 private static byte[] garbage;
80 public static void main(String [] args) {
81 System.out.println("Creating garbage");
82 // create 128MB of garbage. This should result in at least one GC
83 for (int i = 0; i < 1024; i++) {
84 garbage = new byte[128 * 1024];
85 }
86 // do a system gc to get one more gc
87 System.gc();
88 System.out.println("Done");
89 }
90 }
91 }

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