TestPrintRegionRememberedSetInfo.java revision 9727:f944761a3ce3 
1/*
2 * Copyright (c) 2013, 2015, 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 TestPrintRegionRememberedSetInfo
26 * @key gc
27 * @bug 8014240
28 * @summary Test output of G1PrintRegionRememberedSetInfo
29 * @library /testlibrary
30 * @modules java.base/sun.misc
31 *          java.management
32 * @run main TestPrintRegionRememberedSetInfo
33 * @author thomas.schatzl@oracle.com
34 */
35
36import jdk.test.lib.*;
37import java.lang.Thread;
38import java.util.ArrayList;
39import java.util.Arrays;
40
41class RunAndWaitForMarking {
42    public static void main(String[] args) {
43        System.gc();
44        try {
45            Thread.sleep(200);
46        } catch (InterruptedException e) {
47        }
48    }
49}
50
51public class TestPrintRegionRememberedSetInfo {
52
53    public static String runTest(String arg) throws Exception {
54        ArrayList<String> finalargs = new ArrayList<String>();
55        String[] defaultArgs = new String[] {
56            "-XX:+UseG1GC",
57            "-Xmx10m",
58            "-XX:+ExplicitGCInvokesConcurrent",
59            "-XX:+UnlockDiagnosticVMOptions",
60            "-XX:G1HeapRegionSize=1M",
61            "-XX:InitiatingHeapOccupancyPercent=0",
62        };
63
64        finalargs.addAll(Arrays.asList(defaultArgs));
65        finalargs.add(arg);
66
67        finalargs.add(RunAndWaitForMarking.class.getName());
68
69        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
70            finalargs.toArray(new String[0]));
71        OutputAnalyzer output = new OutputAnalyzer(pb.start());
72        output.shouldHaveExitValue(0);
73
74        String result = output.getStdout();
75        return result;
76    }
77
78    public static void main(String[] args) throws Exception {
79        String result;
80
81        result = runTest("-Xlog:gc+liveness=trace");
82        // check that we got region statistics output
83        if (result.indexOf("PHASE") == -1) {
84            throw new RuntimeException("Unexpected output from -XX:+PrintRegionLivenessInfo found.");
85        }
86
87        result = runTest("-Xlog:gc+liveness");
88        if (result.indexOf("remset") != -1) {
89            throw new RuntimeException("Should find remembered set information in output.");
90        }
91    }
92}
93
94