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comparison test/compiler/rtm/locking/TestRTMAbortThreshold.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 RTMAbortThreshold option affects
29 * amount of aborts after which abort ratio is calculated.
30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
31 * @build TestRTMAbortThreshold
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
34 * -XX:+WhiteBoxAPI TestRTMAbortThreshold
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 RTMAbortThreshold option actually affects how soon
47 * method will be deoptimized on high abort ratio.
48 */
49 public class TestRTMAbortThreshold extends CommandLineOptionTest {
50 private TestRTMAbortThreshold() {
51 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
52 }
53
54 @Override
55 protected void runTestCases() throws Throwable {
56 verifyAbortThreshold(false, 1);
57 verifyAbortThreshold(false, 10);
58 verifyAbortThreshold(false, 1000);
59
60 verifyAbortThreshold(true, 1);
61 verifyAbortThreshold(true, 10);
62 verifyAbortThreshold(true, 1000);
63 }
64
65 private void verifyAbortThreshold(boolean useStackLock,
66 long abortThreshold) throws Throwable {
67 AbortProvoker provoker = AbortType.XABORT.provoker();
68
69 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
70 provoker,
71 "-XX:+UseRTMDeopt",
72 "-XX:RTMAbortRatio=0",
73 CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold",
74 abortThreshold),
75 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
76 useStackLock),
77 "-XX:RTMTotalCountIncrRate=1",
78 "-XX:+PrintPreciseRTMLockingStatistics",
79 AbortProvoker.class.getName(),
80 AbortType.XABORT.toString(),
81 Boolean.toString(!useStackLock));
82
83 outputAnalyzer.shouldHaveExitValue(0);
84
85 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
86 provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
87
88 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
89 + "exactly one RTM locking statistics entry for method "
90 + provoker.getMethodWithLockName());
91
92 Asserts.assertEQ(statistics.get(0).getTotalLocks(), abortThreshold,
93 String.format("Expected that method with rtm lock elision was"
94 + " deoptimized after %d lock attempts",
95 abortThreshold));
96 }
97
98 public static void main(String args[]) throws Throwable {
99 new TestRTMAbortThreshold().test();
100 }
101 }
102