Mercurial > hg > truffle
diff test/compiler/rtm/locking/TestRTMTotalCountIncrRate.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/TestRTMTotalCountIncrRate.java Thu May 29 13:14:25 2014 -0700 @@ -0,0 +1,150 @@ +/* + * 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 RTMTotalCountIncrRate option affects + * RTM locking statistics. + * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary + * @build TestRTMTotalCountIncrRate + * @run main ClassFileInstaller sun.hotspot.WhiteBox + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions + * -XX:+WhiteBoxAPI TestRTMTotalCountIncrRate + */ + +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 with RTMTotalCountIncrRate=1 RTM locking statistics + * contains precise information abort attempted locks and that with other values + * statistics contains information abort non-zero locking attempts. + * Since assert done for RTMTotalCountIncrRate=1 is pretty strict, test uses + * -XX:RTMRetryCount=0 to avoid issue with retriable aborts. For more details on + * that issue see {@link TestUseRTMAfterLockInflation}. + */ +public class TestRTMTotalCountIncrRate extends CommandLineOptionTest { + private TestRTMTotalCountIncrRate() { + super(new AndPredicate(new SupportedCPU(), new SupportedVM())); + } + + @Override + protected void runTestCases() throws Throwable { + verifyLocksCount(1, false); + verifyLocksCount(64, false); + verifyLocksCount(128, false); + verifyLocksCount(1, true); + verifyLocksCount(64, true); + verifyLocksCount(128, true); + } + + private void verifyLocksCount(int incrRate, boolean useStackLock) + throws Throwable{ + CompilableTest test = new Test(); + + OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( + test, + CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", + useStackLock), + CommandLineOptionTest.prepareNumericFlag( + "RTMTotalCountIncrRate", incrRate), + "-XX:RTMRetryCount=0", + "-XX:+PrintPreciseRTMLockingStatistics", + Test.class.getName(), + Boolean.toString(!useStackLock) + ); + + outputAnalyzer.shouldHaveExitValue(0); + + List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( + test.getMethodWithLockName(), outputAnalyzer.getOutput()); + + Asserts.assertEQ(statistics.size(), 1, "VM output should contain " + + "exactly one RTM locking statistics entry for method " + + test.getMethodWithLockName()); + + RTMLockingStatistics lock = statistics.get(0); + if (incrRate == 1) { + Asserts.assertEQ(lock.getTotalLocks(), Test.TOTAL_ITERATIONS, + "Total locks should be exactly the same as amount of " + + "iterations."); + } else { + Asserts.assertGT(lock.getTotalLocks(), 0L, "RTM statistics " + + "should contain information for at least on lock."); + } + } + + public static class Test implements CompilableTest { + private static final long TOTAL_ITERATIONS = 10000L; + private final Object monitor = new Object(); + // Following field have to be static in order to avoid escape analysis. + @SuppressWarnings("UnsuedDeclaration") + private static int field = 0; + + @Override + public String getMethodWithLockName() { + return this.getClass().getName() + "::lock"; + } + + @Override + public String[] getMethodsToCompileNames() { + return new String[] { + getMethodWithLockName() + }; + } + + public void lock() { + synchronized(monitor) { + Test.field++; + } + } + + /** + * Usage: + * Test <inflate monitor> + */ + public static void main(String args[]) throws Throwable { + Asserts.assertGTE(args.length, 1, "One argument required."); + Test test = new Test(); + + if (Boolean.valueOf(args[0])) { + AbortProvoker.inflateMonitor(test.monitor); + } + for (long i = 0L; i < Test.TOTAL_ITERATIONS; i++) { + test.lock(); + } + } + } + + public static void main(String args[]) throws Throwable { + new TestRTMTotalCountIncrRate().test(); + } +}