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comparison test/compiler/rtm/locking/TestUseRTMForInflatedLocks.java @ 17873:ba8268c23fa2

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8037860: Add tests to cover Intel RTM instructions support Reviewed-by: kvn, iignatyev Contributed-by: filipp.zhinkin@oracle.com
author iignatyev
date Fri, 11 Apr 2014 00:35:23 +0400
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17872:100f2b109432 17873:ba8268c23fa2
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 rtm locking is used for inflated locks.
29 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
30 * @build TestUseRTMForInflatedLocks
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
33 * -XX:+WhiteBoxAPI TestUseRTMForInflatedLocks
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 RTM-based lock elision could be used for inflated locks
47 * by calling compiled method that use RTM-based lock elision and using
48 * manually inflated lock.
49 * Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times,
50 * so total locks count should be the same.
51 * This test could also be affected by retriable aborts, so -XX:RTMRetryCount=0
52 * is used. For more information abort that issue see
53 * {@link TestUseRTMAfterLockInflation}.
54 */
55 public class TestUseRTMForInflatedLocks extends CommandLineOptionTest {
56 private TestUseRTMForInflatedLocks() {
57 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
58 }
59
60 @Override
61 protected void runTestCases() throws Throwable {
62 AbortProvoker provoker = AbortType.XABORT.provoker();
63 RTMLockingStatistics lock;
64
65 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
66 provoker,
67 "-XX:-UseRTMForStackLocks",
68 "-XX:RTMTotalCountIncrRate=1",
69 "-XX:RTMRetryCount=0",
70 "-XX:+PrintPreciseRTMLockingStatistics",
71 AbortProvoker.class.getName(),
72 AbortType.XABORT.toString());
73
74 outputAnalyzer.shouldHaveExitValue(0);
75
76 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
77 provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
78
79 Asserts.assertEQ(statistics.size(), 1,
80 "VM output should contain exactly one rtm locking statistics "
81 + "entry for method " + provoker.getMethodWithLockName());
82
83 lock = statistics.get(0);
84 Asserts.assertEQ(lock.getTotalLocks(), AbortProvoker.DEFAULT_ITERATIONS,
85 "Total lock count should be greater or equal to "
86 + AbortProvoker.DEFAULT_ITERATIONS);
87 }
88
89 public static void main(String args[]) throws Throwable {
90 new TestUseRTMForInflatedLocks().test();
91 }
92 }