Mercurial > hg > truffle
comparison test/compiler/rtm/locking/TestRTMDeoptOnLowAbortRatio.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 on low abort ratio method will be recompiled. | |
29 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary | |
30 * @build TestRTMDeoptOnLowAbortRatio | |
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions | |
33 * -XX:+WhiteBoxAPI TestRTMDeoptOnLowAbortRatio | |
34 */ | |
35 | |
36 import java.util.List; | |
37 import com.oracle.java.testlibrary.*; | |
38 import com.oracle.java.testlibrary.cli.CommandLineOptionTest; | |
39 import com.oracle.java.testlibrary.cli.predicate.AndPredicate; | |
40 import rtm.*; | |
41 import rtm.predicate.SupportedCPU; | |
42 import rtm.predicate.SupportedVM; | |
43 import sun.misc.Unsafe; | |
44 | |
45 /** | |
46 * Test verifies that low abort ratio method will be deoptimized with | |
47 * <i>rtm_state_change</i> reason and will continue to use RTM-based lock | |
48 * elision after that. | |
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 TestRTMDeoptOnLowAbortRatio extends CommandLineOptionTest { | |
54 private static final long LOCKING_THRESHOLD = 100L; | |
55 | |
56 private TestRTMDeoptOnLowAbortRatio() { | |
57 super(new AndPredicate(new SupportedCPU(), new SupportedVM())); | |
58 } | |
59 | |
60 @Override | |
61 protected void runTestCases() throws Throwable { | |
62 verifyRTMDeopt(false); | |
63 verifyRTMDeopt(true); | |
64 } | |
65 | |
66 private void verifyRTMDeopt(boolean useStackLock) throws Throwable { | |
67 CompilableTest test = new Test(); | |
68 String logFileName = String.format("rtm_deopt_%s_stack_lock.xml", | |
69 useStackLock ? "use" : "no"); | |
70 | |
71 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( | |
72 logFileName, | |
73 test, | |
74 "-XX:+UseRTMDeopt", | |
75 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", | |
76 useStackLock), | |
77 CommandLineOptionTest.prepareNumericFlag("RTMLockingThreshold", | |
78 TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD), | |
79 "-XX:RTMAbortThreshold=1", | |
80 "-XX:RTMAbortRatio=100", | |
81 "-XX:CompileThreshold=1", | |
82 "-XX:RTMRetryCount=0", | |
83 "-XX:RTMTotalCountIncrRate=1", | |
84 "-XX:+PrintPreciseRTMLockingStatistics", | |
85 Test.class.getName(), | |
86 Boolean.toString(!useStackLock) | |
87 ); | |
88 | |
89 outputAnalyzer.shouldHaveExitValue(0); | |
90 | |
91 int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName); | |
92 | |
93 Asserts.assertEQ(firedTraps, 1, | |
94 "Expected to get only one deoptimization due to rtm" | |
95 + " state change"); | |
96 | |
97 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( | |
98 test.getMethodWithLockName(), outputAnalyzer.getOutput()); | |
99 | |
100 Asserts.assertEQ(statistics.size(), 2, | |
101 "VM output should contain two RTM locking " | |
102 + "statistics entries for method " | |
103 + test.getMethodWithLockName()); | |
104 | |
105 RTMLockingStatistics statisticsBeforeDeopt = null; | |
106 | |
107 for (RTMLockingStatistics s : statistics) { | |
108 if (s.getTotalLocks() | |
109 == TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD + 1L) { | |
110 Asserts.assertNull(statisticsBeforeDeopt, | |
111 "Only one abort was expected during test run"); | |
112 statisticsBeforeDeopt = s; | |
113 } | |
114 } | |
115 | |
116 Asserts.assertNotNull(statisticsBeforeDeopt, | |
117 "After LockThreshold was reached, method should be recompiled " | |
118 + "with rtm lock eliding."); | |
119 } | |
120 | |
121 public static class Test implements CompilableTest { | |
122 private static final Unsafe UNSAFE = Utils.getUnsafe(); | |
123 private final Object monitor = new Object(); | |
124 | |
125 @Override | |
126 public String getMethodWithLockName() { | |
127 return this.getClass().getName() + "::forceAbort"; | |
128 } | |
129 | |
130 @Override | |
131 public String[] getMethodsToCompileNames() { | |
132 return new String[] { | |
133 getMethodWithLockName(), | |
134 sun.misc.Unsafe.class.getName() + "::addressSize" | |
135 }; | |
136 } | |
137 | |
138 public void forceAbort(boolean abort) { | |
139 synchronized(monitor) { | |
140 if (abort) { | |
141 Test.UNSAFE.addressSize(); | |
142 } | |
143 } | |
144 } | |
145 | |
146 /** | |
147 * Usage: | |
148 * Test <inflate monitor> | |
149 */ | |
150 public static void main(String args[]) throws Throwable { | |
151 Asserts.assertGTE(args.length, 1, "One argument required."); | |
152 Test t = new Test(); | |
153 | |
154 if (Boolean.valueOf(args[0])) { | |
155 AbortProvoker.inflateMonitor(t.monitor); | |
156 } | |
157 for (int i = 0; i < AbortProvoker.DEFAULT_ITERATIONS; i++) { | |
158 t.forceAbort( | |
159 i == TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD); | |
160 } | |
161 } | |
162 } | |
163 | |
164 public static void main(String args[]) throws Throwable { | |
165 new TestRTMDeoptOnLowAbortRatio().test(); | |
166 } | |
167 } |