Mercurial > hg > truffle
comparison test/compiler/rtm/locking/TestRTMAfterNonRTMDeopt.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 if we use RTMDeopt, then deoptimization | |
29 * caused by reason other then rtm_state_change will reset | |
30 * method's RTM state. And if we don't use RTMDeopt, then | |
31 * RTM state remain the same after such deoptimization. | |
32 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary | |
33 * @build TestRTMAfterNonRTMDeopt | |
34 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions | |
36 * -XX:+WhiteBoxAPI TestRTMAfterNonRTMDeopt | |
37 */ | |
38 | |
39 import java.util.List; | |
40 import com.oracle.java.testlibrary.*; | |
41 import com.oracle.java.testlibrary.cli.CommandLineOptionTest; | |
42 import com.oracle.java.testlibrary.cli.predicate.AndPredicate; | |
43 import rtm.*; | |
44 import rtm.predicate.SupportedCPU; | |
45 import rtm.predicate.SupportedVM; | |
46 import sun.misc.Unsafe; | |
47 | |
48 /** | |
49 * To verify that with +UseRTMDeopt method's RTM state will be | |
50 * changed to ProfileRTM on deoptimization unrelated to | |
51 * rtm_state_change following sequence of events is used: | |
52 * <pre> | |
53 * | |
54 * rtm state ^ | |
55 * | | |
56 * UseRTM | ******| ****** | |
57 * | | | |
58 * ProfileRTM |******| |*****| | |
59 * | | | | | |
60 * 0-------|-----|-----|---------------------> time | |
61 * | | \ force abort | |
62 * | | | |
63 * | \ force deoptimization | |
64 * | | |
65 * \ force xabort | |
66 * </pre> | |
67 * When xabort is forced by native method call method should | |
68 * change it's state to UseRTM, because we use RTMAbortRatio=100 | |
69 * and low RTMLockingThreshold, so at this point actual abort | |
70 * ratio will be below 100% and there should be enough lock | |
71 * attempts to recompile method without RTM profiling. | |
72 */ | |
73 public class TestRTMAfterNonRTMDeopt extends CommandLineOptionTest { | |
74 private static final int ABORT_THRESHOLD = 1000; | |
75 private static final String RANGE_CHECK = "range_check"; | |
76 | |
77 private TestRTMAfterNonRTMDeopt() { | |
78 super(new AndPredicate(new SupportedCPU(), new SupportedVM())); | |
79 } | |
80 | |
81 @Override | |
82 protected void runTestCases() throws Throwable { | |
83 verifyRTMAfterDeopt(false, false); | |
84 verifyRTMAfterDeopt(true, false); | |
85 | |
86 verifyRTMAfterDeopt(false, true); | |
87 verifyRTMAfterDeopt(true, true); | |
88 } | |
89 | |
90 private void verifyRTMAfterDeopt(boolean useStackLock, | |
91 boolean useRTMDeopt) throws Throwable { | |
92 CompilableTest test = new Test(); | |
93 String logFile = String.format("rtm_%s_stack_lock_%s_deopt.xml", | |
94 (useStackLock ? "use" : "no"), (useRTMDeopt ? "use" : "no")); | |
95 | |
96 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( | |
97 logFile, | |
98 test, | |
99 "-XX:CompileThreshold=1", | |
100 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", | |
101 useStackLock), | |
102 CommandLineOptionTest.prepareBooleanFlag("UseRTMDeopt", | |
103 useRTMDeopt), | |
104 "-XX:RTMAbortRatio=100", | |
105 CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold", | |
106 TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD), | |
107 CommandLineOptionTest.prepareNumericFlag("RTMLockingThreshold", | |
108 TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD / 2L), | |
109 "-XX:RTMTotalCountIncrRate=1", | |
110 "-XX:+PrintPreciseRTMLockingStatistics", | |
111 Test.class.getName(), | |
112 Boolean.toString(!useStackLock) | |
113 ); | |
114 | |
115 outputAnalyzer.shouldHaveExitValue(0); | |
116 | |
117 int traps = RTMTestBase.firedRTMStateChangeTraps(logFile); | |
118 | |
119 if (useRTMDeopt) { | |
120 Asserts.assertEQ(traps, 2, "Two uncommon traps with " | |
121 + "reason rtm_state_change should be fired."); | |
122 } else { | |
123 Asserts.assertEQ(traps, 0, "No uncommon traps with " | |
124 + "reason rtm_state_change should be fired."); | |
125 } | |
126 | |
127 int rangeCheckTraps = RTMTestBase.firedUncommonTraps(logFile, | |
128 TestRTMAfterNonRTMDeopt.RANGE_CHECK); | |
129 | |
130 Asserts.assertEQ(rangeCheckTraps, 1, | |
131 "One range_check uncommon trap should be fired."); | |
132 | |
133 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( | |
134 test.getMethodWithLockName(), outputAnalyzer.getOutput()); | |
135 | |
136 int expectedStatEntries = (useRTMDeopt ? 4 : 2); | |
137 | |
138 Asserts.assertEQ(statistics.size(), expectedStatEntries, | |
139 String.format("VM output should contain %d RTM locking " | |
140 + "statistics entries.", expectedStatEntries)); | |
141 } | |
142 | |
143 public static class Test implements CompilableTest { | |
144 // Following field have to be static in order to avoid escape analysis. | |
145 @SuppressWarnings("UnsuedDeclaration") | |
146 private static int field = 0; | |
147 private static final int ITERATIONS = 10000; | |
148 private static final int RANGE_CHECK_AT = ITERATIONS / 2; | |
149 private static final Unsafe UNSAFE = Utils.getUnsafe(); | |
150 private final Object monitor = new Object(); | |
151 | |
152 @Override | |
153 public String getMethodWithLockName() { | |
154 return this.getClass().getName() + "::forceAbort"; | |
155 } | |
156 | |
157 @Override | |
158 public String[] getMethodsToCompileNames() { | |
159 return new String[] { | |
160 getMethodWithLockName(), | |
161 sun.misc.Unsafe.class.getName() + "::forceAbort" | |
162 }; | |
163 } | |
164 | |
165 public void forceAbort(int a[], boolean abort) { | |
166 try { | |
167 synchronized(monitor) { | |
168 a[0]++; | |
169 if (abort) { | |
170 Test.field = Test.UNSAFE.addressSize(); | |
171 } | |
172 } | |
173 } catch (Throwable t) { | |
174 // suppress any throwables | |
175 } | |
176 } | |
177 | |
178 /** | |
179 * Usage: | |
180 * Test <inflate monitor> | |
181 */ | |
182 public static void main(String args[]) throws Throwable { | |
183 Test t = new Test(); | |
184 | |
185 if (Boolean.valueOf(args[0])) { | |
186 AbortProvoker.inflateMonitor(t.monitor); | |
187 } | |
188 | |
189 int tmp[] = new int[1]; | |
190 | |
191 for (int i = 0; i < Test.ITERATIONS; i++ ) { | |
192 if (i == Test.RANGE_CHECK_AT) { | |
193 t.forceAbort(new int[0], false); | |
194 } else { | |
195 boolean isThreshold | |
196 = (i == TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD); | |
197 boolean isThresholdPlusRange | |
198 = (i == TestRTMAfterNonRTMDeopt.ABORT_THRESHOLD | |
199 + Test.RANGE_CHECK_AT); | |
200 t.forceAbort(tmp, isThreshold || isThresholdPlusRange); | |
201 } | |
202 } | |
203 } | |
204 } | |
205 | |
206 public static void main(String args[]) throws Throwable { | |
207 new TestRTMAfterNonRTMDeopt().test(); | |
208 } | |
209 } | |
210 |