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comparison test/compiler/rtm/locking/TestUseRTMAfterLockInflation.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 stack locks before
29 * inflation and after it used for inflated locks.
30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
31 * @build TestUseRTMAfterLockInflation
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
34 * -XX:+WhiteBoxAPI TestUseRTMAfterLockInflation
35 */
36
37 import java.util.List;
38
39 import com.oracle.java.testlibrary.*;
40 import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
41 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
42 import rtm.*;
43 import rtm.predicate.SupportedCPU;
44 import rtm.predicate.SupportedVM;
45
46 /**
47 * Test verifies that RTM is used after lock inflation by executing compiled
48 * method with RTM-based lock elision using stack lock first, then that lock
49 * is inflated and the same compiled method invoked again.
50 *
51 * Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times before
52 * lock inflation and the same amount of times after inflation.
53 * As a result total locks count should be equal to
54 * {@code 2*AbortProvoker.DEFAULT_ITERATIONS}.
55 * It is a pretty strict assertion which could fail if some retriable abort
56 * happened: it could be {@code AbortType.RETRIABLE} or
57 * {@code AbortType.MEM_CONFLICT}, but unfortunately abort can has both these
58 * reasons simultaneously. In order to avoid false negative failures related
59 * to incorrect aborts counting, -XX:RTMRetryCount=0 is used.
60 */
61 public class TestUseRTMAfterLockInflation extends CommandLineOptionTest {
62 private static final long EXPECTED_LOCKS
63 = 2L * AbortProvoker.DEFAULT_ITERATIONS;
64
65 private TestUseRTMAfterLockInflation() {
66 super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
67 }
68
69 @Override
70 protected void runTestCases() throws Throwable {
71 AbortProvoker provoker = AbortType.XABORT.provoker();
72 long totalLocksCount = 0;
73
74 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
75 provoker,
76 "-XX:+UseRTMForStackLocks",
77 "-XX:RTMTotalCountIncrRate=1",
78 "-XX:RTMRetryCount=0",
79 "-XX:+PrintPreciseRTMLockingStatistics",
80 Test.class.getName(),
81 AbortType.XABORT.toString());
82
83 outputAnalyzer.shouldHaveExitValue(0);
84
85 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
86 provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
87
88 Asserts.assertEQ(statistics.size(), 2,
89 "VM output should contain two rtm locking statistics entries "
90 + "for method " + provoker.getMethodWithLockName());
91
92 for (RTMLockingStatistics s : statistics) {
93 totalLocksCount += s.getTotalLocks();
94 }
95
96 Asserts.assertEQ(totalLocksCount,
97 TestUseRTMAfterLockInflation.EXPECTED_LOCKS,
98 "Total lock count should be greater or equal to "
99 + TestUseRTMAfterLockInflation.EXPECTED_LOCKS);
100 }
101
102 public static class Test {
103
104 /**
105 * Usage:
106 * Test &lt;provoker type&gt;
107 */
108 public static void main(String args[]) throws Throwable {
109 Asserts.assertGT(args.length, 0,
110 "AbortType name is expected as first argument.");
111
112 AbortProvoker provoker
113 = AbortType.lookup(Integer.valueOf(args[0])).provoker();
114 for (int i = 0; i < AbortProvoker.DEFAULT_ITERATIONS; i++) {
115 provoker.forceAbort();
116 }
117 provoker.inflateMonitor();
118 for (int i = 0; i < AbortProvoker.DEFAULT_ITERATIONS; i++) {
119 provoker.forceAbort();
120 }
121 }
122 }
123
124 public static void main(String args[]) throws Throwable {
125 new TestUseRTMAfterLockInflation().test();
126 }
127 }