aoqi@0: /*
aoqi@0:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: /**
aoqi@0:  * @test
aoqi@0:  * @bug 8031320
aoqi@0:  * @summary Verify that UseRTMXendForLockBusy option affects
aoqi@0:  *          method behaviour if lock is busy.
aoqi@0:  * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
aoqi@0:  * @build TestUseRTMXendForLockBusy
aoqi@0:  * @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0:  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
aoqi@0:  *                   -XX:+WhiteBoxAPI TestUseRTMXendForLockBusy
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.util.List;
aoqi@0: 
aoqi@0: import com.oracle.java.testlibrary.*;
aoqi@0: import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
aoqi@0: import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
aoqi@0: import rtm.*;
aoqi@0: import rtm.predicate.SupportedCPU;
aoqi@0: import rtm.predicate.SupportedVM;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Test verifies that with +UseRTMXendForLockBusy there will be no aborts
aoqi@0:  * forced by the test.
aoqi@0:  */
aoqi@0: public class TestUseRTMXendForLockBusy extends CommandLineOptionTest {
aoqi@0:     private final static int LOCKING_TIME = 5000;
aoqi@0: 
aoqi@0:     private TestUseRTMXendForLockBusy() {
aoqi@0:         super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
aoqi@0:     }
aoqi@0: 
aoqi@0:     @Override
aoqi@0:     protected void runTestCases() throws Throwable {
aoqi@0:         // inflated lock, xabort on lock busy
aoqi@0:         verifyXendForLockBusy(true, false);
aoqi@0:         // inflated lock, xend on lock busy
aoqi@0:         verifyXendForLockBusy(true, true);
aoqi@0:         // stack lock, xabort on lock busy
aoqi@0:         verifyXendForLockBusy(false, false);
aoqi@0:         // stack lock, xend on lock busy
aoqi@0:         verifyXendForLockBusy(false, true);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void verifyXendForLockBusy(boolean inflateMonitor,
aoqi@0:             boolean useXend) throws Throwable {
aoqi@0:         CompilableTest test = new BusyLock();
aoqi@0: 
aoqi@0:         OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
aoqi@0:                 test,
aoqi@0:                 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
aoqi@0:                         inflateMonitor),
aoqi@0:                 CommandLineOptionTest.prepareBooleanFlag(
aoqi@0:                         "UseRTMXendForLockBusy",
aoqi@0:                         useXend),
aoqi@0:                 "-XX:RTMRetryCount=0",
aoqi@0:                 "-XX:RTMTotalCountIncrRate=1",
aoqi@0:                 "-XX:+PrintPreciseRTMLockingStatistics",
aoqi@0:                 BusyLock.class.getName(),
aoqi@0:                 Boolean.toString(inflateMonitor),
aoqi@0:                 Integer.toString(TestUseRTMXendForLockBusy.LOCKING_TIME)
aoqi@0:         );
aoqi@0: 
aoqi@0:         outputAnalyzer.shouldHaveExitValue(0);
aoqi@0: 
aoqi@0:         List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
aoqi@0:                 test.getMethodWithLockName(), outputAnalyzer.getOutput());
aoqi@0: 
aoqi@0:         Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
aoqi@0:                 + "exactly one rtm locking statistics entry for method "
aoqi@0:                 + test.getMethodWithLockName());
aoqi@0: 
aoqi@0:         long aborts = statistics.get(0).getAborts(AbortType.XABORT);
aoqi@0: 
aoqi@0:         if (useXend) {
aoqi@0:             Asserts.assertEQ(aborts, 0L,
aoqi@0:                     "Expected to get no aborts on busy lock");
aoqi@0:         } else {
aoqi@0:             Asserts.assertGT(aborts, 0L,
aoqi@0:                     "Expected to get at least one abort on busy lock");
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String args[]) throws Throwable {
aoqi@0:         new TestUseRTMXendForLockBusy().test();
aoqi@0:     }
aoqi@0: }