Mercurial > hg > truffle
diff test/compiler/rtm/locking/TestRTMRetryCount.java @ 18058:54bc75c144b0
Merge
author | asaha |
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date | Thu, 29 May 2014 13:14:25 -0700 |
parents | ba8268c23fa2 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/rtm/locking/TestRTMRetryCount.java Thu May 29 13:14:25 2014 -0700 @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +/** + * @test + * @bug 8031320 + * @summary Verify that RTMRetryCount affects actual amount of retries. + * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary + * @build TestRTMRetryCount + * @run main ClassFileInstaller sun.hotspot.WhiteBox + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions + * -XX:+WhiteBoxAPI TestRTMRetryCount + */ + +import java.util.List; + +import com.oracle.java.testlibrary.*; +import com.oracle.java.testlibrary.cli.CommandLineOptionTest; +import com.oracle.java.testlibrary.cli.predicate.AndPredicate; +import rtm.*; +import rtm.predicate.SupportedCPU; +import rtm.predicate.SupportedVM; + +/** + * Test verifies that RTMRetryCount option actually affects amount of + * retries on lock busy. + */ +public class TestRTMRetryCount extends CommandLineOptionTest { + /** + * Time in ms, during which busy lock will be locked. + */ + private static final int LOCKING_TIME = 5000; + private static final boolean INFLATE_MONITOR = true; + + private TestRTMRetryCount() { + super(new AndPredicate(new SupportedCPU(), new SupportedVM())); + } + + @Override + protected void runTestCases() throws Throwable { + verifyRTMRetryCount(0); + verifyRTMRetryCount(1); + verifyRTMRetryCount(5); + verifyRTMRetryCount(10); + } + + private void verifyRTMRetryCount(int retryCount) throws Throwable { + CompilableTest busyLock = new BusyLock(); + long expectedAborts = retryCount + 1L; + + OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( + busyLock, + "-XX:-UseRTMXendForLockBusy", + "-XX:RTMTotalCountIncrRate=1", + CommandLineOptionTest.prepareNumericFlag("RTMRetryCount", + retryCount), + "-XX:RTMTotalCountIncrRate=1", + "-XX:+PrintPreciseRTMLockingStatistics", + BusyLock.class.getName(), + Boolean.toString(TestRTMRetryCount.INFLATE_MONITOR), + Integer.toString(TestRTMRetryCount.LOCKING_TIME) + ); + + outputAnalyzer.shouldHaveExitValue(0); + + List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( + busyLock.getMethodWithLockName(), outputAnalyzer.getStdout()); + + Asserts.assertEQ(statistics.size(), 1, "VM output should contain " + + "exactly one rtm locking statistics entry for method " + + busyLock.getMethodWithLockName()); + + Asserts.assertEQ(statistics.get(0).getTotalAborts(), expectedAborts, + String.format("It is expected to get %d aborts", + expectedAborts)); + } + + public static void main(String args[]) throws Throwable { + new TestRTMRetryCount().test(); + } +}