Mercurial > hg > truffle
comparison test/compiler/rtm/locking/TestRTMSpinLoopCount.java @ 17873:ba8268c23fa2
8037860: Add tests to cover Intel RTM instructions support
Reviewed-by: kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com
author | iignatyev |
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date | Fri, 11 Apr 2014 00:35:23 +0400 |
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17872:100f2b109432 | 17873:ba8268c23fa2 |
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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 RTMSpinLoopCount affects time spent | |
29 * between locking attempts. | |
30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary | |
31 * @build TestRTMSpinLoopCount | |
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions | |
34 * -XX:+WhiteBoxAPI TestRTMSpinLoopCount | |
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 RTMSpinLoopCount increase time spent between retries | |
47 * by comparing amount of retries done with different RTMSpinLoopCount's values. | |
48 */ | |
49 public class TestRTMSpinLoopCount extends CommandLineOptionTest { | |
50 private static final int LOCKING_TIME = 1000; | |
51 private static final int RTM_RETRY_COUNT = 1000; | |
52 private static final boolean INFLATE_MONITOR = true; | |
53 private static final long MAX_ABORTS = RTM_RETRY_COUNT + 1L; | |
54 private static final int[] SPIN_LOOP_COUNTS | |
55 = new int[] { 0, 100, 1_000, 1_000_000, 10_000_000 }; | |
56 | |
57 private TestRTMSpinLoopCount() { | |
58 super(new AndPredicate(new SupportedVM(), new SupportedCPU())); | |
59 } | |
60 | |
61 @Override | |
62 protected void runTestCases() throws Throwable { | |
63 long[] aborts = new long[TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length]; | |
64 for (int i = 0; i < TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length; i++) { | |
65 aborts[i] = getAbortsCountOnLockBusy( | |
66 TestRTMSpinLoopCount.SPIN_LOOP_COUNTS[i]); | |
67 } | |
68 | |
69 for (int i = 1; i < aborts.length; i++) { | |
70 Asserts.assertLTE(aborts[i], aborts[i - 1], "Increased spin loop " | |
71 + "count should not increase retries count."); | |
72 } | |
73 } | |
74 | |
75 private long getAbortsCountOnLockBusy(int spinLoopCount) throws Throwable { | |
76 CompilableTest test = new BusyLock(); | |
77 | |
78 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( | |
79 test, | |
80 CommandLineOptionTest.prepareNumericFlag("RTMRetryCount", | |
81 TestRTMSpinLoopCount.RTM_RETRY_COUNT), | |
82 CommandLineOptionTest.prepareNumericFlag("RTMSpinLoopCount", | |
83 spinLoopCount), | |
84 "-XX:-UseRTMXendForLockBusy", | |
85 "-XX:RTMTotalCountIncrRate=1", | |
86 "-XX:+PrintPreciseRTMLockingStatistics", | |
87 BusyLock.class.getName(), | |
88 Boolean.toString(TestRTMSpinLoopCount.INFLATE_MONITOR), | |
89 Integer.toString(TestRTMSpinLoopCount.LOCKING_TIME) | |
90 ); | |
91 | |
92 outputAnalyzer.shouldHaveExitValue(0); | |
93 | |
94 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( | |
95 test.getMethodWithLockName(), outputAnalyzer.getOutput()); | |
96 | |
97 Asserts.assertEQ(statistics.size(), 1, | |
98 "VM output should contain exactly one entry for method " | |
99 + test.getMethodWithLockName()); | |
100 | |
101 RTMLockingStatistics lock = statistics.get(0); | |
102 | |
103 Asserts.assertLTE(lock.getTotalAborts(), | |
104 TestRTMSpinLoopCount.MAX_ABORTS, String.format("Total aborts " | |
105 + "count (%d) should be less or equal to %d", | |
106 lock.getTotalAborts(), | |
107 TestRTMSpinLoopCount.MAX_ABORTS)); | |
108 | |
109 return lock.getTotalAborts(); | |
110 } | |
111 | |
112 public static void main(String args[]) throws Throwable { | |
113 new TestRTMSpinLoopCount().test(); | |
114 } | |
115 } |