Mercurial > hg > truffle
view test/compiler/rtm/locking/TestRTMTotalCountIncrRate.java @ 18259:e1b2489393f4
added global map to ensure each NamedLocationIdentity object has a unique name which can be used for implementing .equals() and .hashCode()
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 05 Nov 2014 17:04:18 +0100 |
parents | ba8268c23fa2 |
children |
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/* * 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(); } }