| /* |
| * 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 UseRTMXendForLockBusy option affects |
| * method behaviour if lock is busy. |
| * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary |
| * @build TestUseRTMXendForLockBusy |
| * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI TestUseRTMXendForLockBusy |
| */ |
| |
| 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 +UseRTMXendForLockBusy there will be no aborts |
| * forced by the test. |
| */ |
| public class TestUseRTMXendForLockBusy extends CommandLineOptionTest { |
| private final static int LOCKING_TIME = 5000; |
| |
| private TestUseRTMXendForLockBusy() { |
| super(new AndPredicate(new SupportedVM(), new SupportedCPU())); |
| } |
| |
| @Override |
| protected void runTestCases() throws Throwable { |
| // inflated lock, xabort on lock busy |
| verifyXendForLockBusy(true, false); |
| // inflated lock, xend on lock busy |
| verifyXendForLockBusy(true, true); |
| // stack lock, xabort on lock busy |
| verifyXendForLockBusy(false, false); |
| // stack lock, xend on lock busy |
| verifyXendForLockBusy(false, true); |
| } |
| |
| private void verifyXendForLockBusy(boolean inflateMonitor, |
| boolean useXend) throws Throwable { |
| CompilableTest test = new BusyLock(); |
| |
| OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( |
| test, |
| CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", |
| inflateMonitor), |
| CommandLineOptionTest.prepareBooleanFlag( |
| "UseRTMXendForLockBusy", |
| useXend), |
| "-XX:RTMRetryCount=0", |
| "-XX:RTMTotalCountIncrRate=1", |
| "-XX:+PrintPreciseRTMLockingStatistics", |
| BusyLock.class.getName(), |
| Boolean.toString(inflateMonitor), |
| Integer.toString(TestUseRTMXendForLockBusy.LOCKING_TIME) |
| ); |
| |
| 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()); |
| |
| long aborts = statistics.get(0).getAborts(AbortType.XABORT); |
| |
| if (useXend) { |
| Asserts.assertEQ(aborts, 0L, |
| "Expected to get no aborts on busy lock"); |
| } else { |
| Asserts.assertGT(aborts, 0L, |
| "Expected to get at least one abort on busy lock"); |
| } |
| } |
| |
| public static void main(String args[]) throws Throwable { |
| new TestUseRTMXendForLockBusy().test(); |
| } |
| } |