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comparison test/compiler/rtm/locking/TestRTMRetryCount.java @ 18058:54bc75c144b0

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Merge
author asaha
date Thu, 29 May 2014 13:14:25 -0700
parents ba8268c23fa2
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18055:1fa005fb28f5 18058:54bc75c144b0
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 /**
26 * @test
27 * @bug 8031320
28 * @summary Verify that RTMRetryCount affects actual amount of retries.
29 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
30 * @build TestRTMRetryCount
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
33 * -XX:+WhiteBoxAPI TestRTMRetryCount
34 */
35
36 import java.util.List;
37
38 import com.oracle.java.testlibrary.*;
39 import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
40 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
41 import rtm.*;
42 import rtm.predicate.SupportedCPU;
43 import rtm.predicate.SupportedVM;
44
45 /**
46 * Test verifies that RTMRetryCount option actually affects amount of
47 * retries on lock busy.
48 */
49 public class TestRTMRetryCount extends CommandLineOptionTest {
50 /**
51 * Time in ms, during which busy lock will be locked.
52 */
53 private static final int LOCKING_TIME = 5000;
54 private static final boolean INFLATE_MONITOR = true;
55
56 private TestRTMRetryCount() {
57 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
58 }
59
60 @Override
61 protected void runTestCases() throws Throwable {
62 verifyRTMRetryCount(0);
63 verifyRTMRetryCount(1);
64 verifyRTMRetryCount(5);
65 verifyRTMRetryCount(10);
66 }
67
68 private void verifyRTMRetryCount(int retryCount) throws Throwable {
69 CompilableTest busyLock = new BusyLock();
70 long expectedAborts = retryCount + 1L;
71
72 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
73 busyLock,
74 "-XX:-UseRTMXendForLockBusy",
75 "-XX:RTMTotalCountIncrRate=1",
76 CommandLineOptionTest.prepareNumericFlag("RTMRetryCount",
77 retryCount),
78 "-XX:RTMTotalCountIncrRate=1",
79 "-XX:+PrintPreciseRTMLockingStatistics",
80 BusyLock.class.getName(),
81 Boolean.toString(TestRTMRetryCount.INFLATE_MONITOR),
82 Integer.toString(TestRTMRetryCount.LOCKING_TIME)
83 );
84
85 outputAnalyzer.shouldHaveExitValue(0);
86
87 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
88 busyLock.getMethodWithLockName(), outputAnalyzer.getStdout());
89
90 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
91 + "exactly one rtm locking statistics entry for method "
92 + busyLock.getMethodWithLockName());
93
94 Asserts.assertEQ(statistics.get(0).getTotalAborts(), expectedAborts,
95 String.format("It is expected to get %d aborts",
96 expectedAborts));
97 }
98
99 public static void main(String args[]) throws Throwable {
100 new TestRTMRetryCount().test();
101 }
102 }