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92 lines
3.6 KiB
92 lines
3.6 KiB
/* |
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* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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/** |
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* @test |
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* @bug 8031320 |
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* @summary Verify that rtm locking is used for inflated locks. |
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* @library /testlibrary /testlibrary/whitebox /compiler/testlibrary |
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* @build TestUseRTMForInflatedLocks |
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* @run main ClassFileInstaller sun.hotspot.WhiteBox |
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
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* -XX:+WhiteBoxAPI TestUseRTMForInflatedLocks |
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*/ |
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import java.util.List; |
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import com.oracle.java.testlibrary.*; |
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import com.oracle.java.testlibrary.cli.CommandLineOptionTest; |
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import com.oracle.java.testlibrary.cli.predicate.AndPredicate; |
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import rtm.*; |
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import rtm.predicate.SupportedCPU; |
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import rtm.predicate.SupportedVM; |
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/** |
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* Test verifies that RTM-based lock elision could be used for inflated locks |
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* by calling compiled method that use RTM-based lock elision and using |
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* manually inflated lock. |
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* Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times, |
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* so total locks count should be the same. |
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* This test could also be affected by retriable aborts, so -XX:RTMRetryCount=0 |
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* is used. For more information abort that issue see |
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* {@link TestUseRTMAfterLockInflation}. |
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*/ |
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public class TestUseRTMForInflatedLocks extends CommandLineOptionTest { |
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private TestUseRTMForInflatedLocks() { |
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super(new AndPredicate(new SupportedCPU(), new SupportedVM())); |
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} |
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@Override |
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protected void runTestCases() throws Throwable { |
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AbortProvoker provoker = AbortType.XABORT.provoker(); |
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RTMLockingStatistics lock; |
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OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( |
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provoker, |
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"-XX:-UseRTMForStackLocks", |
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"-XX:RTMTotalCountIncrRate=1", |
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"-XX:RTMRetryCount=0", |
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"-XX:+PrintPreciseRTMLockingStatistics", |
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AbortProvoker.class.getName(), |
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AbortType.XABORT.toString()); |
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outputAnalyzer.shouldHaveExitValue(0); |
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List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( |
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provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); |
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Asserts.assertEQ(statistics.size(), 1, |
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"VM output should contain exactly one rtm locking statistics " |
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+ "entry for method " + provoker.getMethodWithLockName()); |
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lock = statistics.get(0); |
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Asserts.assertEQ(lock.getTotalLocks(), AbortProvoker.DEFAULT_ITERATIONS, |
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"Total lock count should be greater or equal to " |
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+ AbortProvoker.DEFAULT_ITERATIONS); |
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} |
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public static void main(String args[]) throws Throwable { |
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new TestUseRTMForInflatedLocks().test(); |
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} |
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}
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