TestUseRTMXendForLockBusy.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 2014, 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.
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23 */
24
25/**
26 * @test
27 * @bug 8031320
28 * @summary Verify that UseRTMXendForLockBusy option affects
29 *          method behaviour if lock is busy.
30 * @library /testlibrary /test/lib /
31 * @modules java.base/jdk.internal.misc
32 *          java.management
33 * @build compiler.rtm.locking.TestUseRTMXendForLockBusy
34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
35 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
37 *                   -XX:+WhiteBoxAPI
38 *                   compiler.rtm.locking.TestUseRTMXendForLockBusy
39 */
40
41package compiler.rtm.locking;
42
43import compiler.testlibrary.rtm.AbortType;
44import compiler.testlibrary.rtm.BusyLock;
45import compiler.testlibrary.rtm.CompilableTest;
46import compiler.testlibrary.rtm.RTMLockingStatistics;
47import compiler.testlibrary.rtm.RTMTestBase;
48import compiler.testlibrary.rtm.predicate.SupportedCPU;
49import compiler.testlibrary.rtm.predicate.SupportedVM;
50import jdk.test.lib.Asserts;
51import jdk.test.lib.OutputAnalyzer;
52import jdk.test.lib.cli.CommandLineOptionTest;
53import jdk.test.lib.cli.predicate.AndPredicate;
54
55import java.util.List;
56
57/**
58 * Test verifies that with +UseRTMXendForLockBusy there will be no aborts
59 * forced by the test.
60 */
61public class TestUseRTMXendForLockBusy extends CommandLineOptionTest {
62    private final static int LOCKING_TIME = 5000;
63
64    private TestUseRTMXendForLockBusy() {
65        super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
66    }
67
68    @Override
69    protected void runTestCases() throws Throwable {
70        // inflated lock, xabort on lock busy
71        verifyXendForLockBusy(true, false);
72        // inflated lock, xend on lock busy
73        verifyXendForLockBusy(true, true);
74        // stack lock, xabort on lock busy
75        verifyXendForLockBusy(false, false);
76        // stack lock, xend on lock busy
77        verifyXendForLockBusy(false, true);
78    }
79
80    private void verifyXendForLockBusy(boolean inflateMonitor,
81            boolean useXend) throws Throwable {
82        CompilableTest test = new BusyLock();
83
84        OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
85                test,
86                CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
87                        inflateMonitor),
88                CommandLineOptionTest.prepareBooleanFlag(
89                        "UseRTMXendForLockBusy",
90                        useXend),
91                "-XX:RTMRetryCount=0",
92                "-XX:RTMTotalCountIncrRate=1",
93                "-XX:+PrintPreciseRTMLockingStatistics",
94                BusyLock.class.getName(),
95                Boolean.toString(inflateMonitor),
96                Integer.toString(TestUseRTMXendForLockBusy.LOCKING_TIME)
97        );
98
99        outputAnalyzer.shouldHaveExitValue(0);
100
101        List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
102                test.getMethodWithLockName(), outputAnalyzer.getOutput());
103
104        Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
105                + "exactly one rtm locking statistics entry for method "
106                + test.getMethodWithLockName());
107
108        long aborts = statistics.get(0).getAborts(AbortType.XABORT);
109
110        if (useXend) {
111            Asserts.assertEQ(aborts, 0L,
112                    "Expected to get no aborts on busy lock");
113        } else {
114            Asserts.assertGT(aborts, 0L,
115                    "Expected to get at least one abort on busy lock");
116        }
117    }
118
119    public static void main(String args[]) throws Throwable {
120        new TestUseRTMXendForLockBusy().test();
121    }
122}
123