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comparison test/gc/g1/TestGCLogMessages.java @ 17753:191174b49bec

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8035406: Improve data structure for Code Cache remembered sets Summary: Change the code cache remembered sets data structure from a GrowableArray to a chunked list of nmethods. This makes the data structure more amenable to parallelization, and decreases freeing time. Reviewed-by: mgerdin, brutisso
author tschatzl
date Mon, 24 Mar 2014 15:30:14 +0100
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children 96b1c2e06e25
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17750:f53edbc2b728 17753:191174b49bec
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 TestPrintGCDetails
26 * @bug 8035406
27 * @summary Ensure that the PrintGCDetails output for a minor GC with G1
28 * includes the expected necessary messages.
29 * @key gc
30 * @library /testlibrary
31 */
32
33 import com.oracle.java.testlibrary.ProcessTools;
34 import com.oracle.java.testlibrary.OutputAnalyzer;
35
36 public class TestGCLogMessages {
37 public static void main(String[] args) throws Exception {
38
39 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
40 "-Xmx10M",
41 "-XX:+PrintGCDetails",
42 GCTest.class.getName());
43
44 OutputAnalyzer output = new OutputAnalyzer(pb.start());
45
46 output.shouldContain("[Code Root Purge");
47 output.shouldHaveExitValue(0);
48 }
49
50 static class GCTest {
51 private static byte[] garbage;
52 public static void main(String [] args) {
53 System.out.println("Creating garbage");
54 // create 128MB of garbage. This should result in at least one GC
55 for (int i = 0; i < 1024; i++) {
56 garbage = new byte[128 * 1024];
57 }
58 System.out.println("Done");
59 }
60 }
61 }