Mercurial > hg > truffle
comparison test/compiler/rtm/locking/TestRTMDeoptOnHighAbortRatio.java @ 18058:54bc75c144b0
Merge
author | asaha |
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date | Thu, 29 May 2014 13:14:25 -0700 |
parents | ba8268c23fa2 |
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18055:1fa005fb28f5 | 18058:54bc75c144b0 |
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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 on high abort ratio method will be recompiled | |
29 * without rtm locking. | |
30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary | |
31 * @build TestRTMDeoptOnHighAbortRatio | |
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions | |
34 * -XX:+WhiteBoxAPI TestRTMDeoptOnHighAbortRatio | |
35 */ | |
36 | |
37 import java.util.List; | |
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 on high abort ratio method wil be deoptimized with | |
47 * <i>rtm_state_change</i> reason and after that RTM-based lock elision will not | |
48 * be used for that method. | |
49 * This test make asserts on total locks count done by compiled method, | |
50 * so in order to avoid issue with retriable locks -XX:RTMRetryCount=0 is used. | |
51 * For more details on that issue see {@link TestUseRTMAfterLockInflation}. | |
52 */ | |
53 public class TestRTMDeoptOnHighAbortRatio extends CommandLineOptionTest { | |
54 private static final long ABORT_THRESHOLD | |
55 = AbortProvoker.DEFAULT_ITERATIONS / 2L; | |
56 | |
57 private TestRTMDeoptOnHighAbortRatio() { | |
58 super(new AndPredicate(new SupportedCPU(), new SupportedVM())); | |
59 } | |
60 | |
61 @Override | |
62 protected void runTestCases() throws Throwable { | |
63 verifyDeopt(false); | |
64 verifyDeopt(true); | |
65 } | |
66 | |
67 private void verifyDeopt(boolean useStackLock) throws Throwable { | |
68 AbortProvoker provoker = AbortType.XABORT.provoker(); | |
69 String logFileName = String.format("rtm_deopt_%s_stack_lock.xml", | |
70 (useStackLock ? "use" : "no")); | |
71 | |
72 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( | |
73 logFileName, | |
74 provoker, | |
75 "-XX:+UseRTMDeopt", | |
76 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", | |
77 useStackLock), | |
78 "-XX:RTMRetryCount=0", | |
79 CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold", | |
80 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD), | |
81 "-XX:RTMAbortRatio=100", | |
82 "-XX:CompileThreshold=1", | |
83 "-XX:RTMTotalCountIncrRate=1", | |
84 "-XX:+PrintPreciseRTMLockingStatistics", | |
85 AbortProvoker.class.getName(), | |
86 AbortType.XABORT.toString(), | |
87 Boolean.toString(!useStackLock) | |
88 ); | |
89 | |
90 outputAnalyzer.shouldHaveExitValue(0); | |
91 | |
92 int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName); | |
93 | |
94 Asserts.assertEQ(firedTraps, 1, "Expected to get only one " | |
95 + "deoptimization due to rtm state change"); | |
96 | |
97 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( | |
98 provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); | |
99 | |
100 Asserts.assertEQ(statistics.size(), 1, "VM output should contain " | |
101 + "exactly one RTM locking statistics entry for method " | |
102 + provoker.getMethodWithLockName()); | |
103 | |
104 Asserts.assertEQ(statistics.get(0).getTotalLocks(), | |
105 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD, | |
106 "After AbortThreshold was reached, method should be" | |
107 + " recompiled without rtm lock eliding."); | |
108 } | |
109 | |
110 public static void main(String args[]) throws Throwable { | |
111 new TestRTMDeoptOnHighAbortRatio().test(); | |
112 } | |
113 } | |
114 |