1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 /** 26 * @test 27 * @bug 8031320 28 * @summary Verify that UseRTMXendForLockBusy option affects 29 * method behaviour if lock is busy. 30 * @library /testlibrary /../../test/lib /compiler/testlibrary 31 * @build TestUseRTMXendForLockBusy 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 35 * -XX:+WhiteBoxAPI TestUseRTMXendForLockBusy 36 */ 37 38 import java.util.List; 39 40 import com.oracle.java.testlibrary.*; 41 import com.oracle.java.testlibrary.cli.CommandLineOptionTest; 42 import com.oracle.java.testlibrary.cli.predicate.AndPredicate; 43 import rtm.*; 44 import rtm.predicate.SupportedCPU; 45 import rtm.predicate.SupportedVM; 46 47 /** 48 * Test verifies that with +UseRTMXendForLockBusy there will be no aborts 49 * forced by the test. 50 */ 51 public class TestUseRTMXendForLockBusy extends CommandLineOptionTest { 52 private final static int LOCKING_TIME = 5000; 53 54 private TestUseRTMXendForLockBusy() { 55 super(new AndPredicate(new SupportedVM(), new SupportedCPU())); 56 } 57 58 @Override 59 protected void runTestCases() throws Throwable { 60 // inflated lock, xabort on lock busy 61 verifyXendForLockBusy(true, false); 62 // inflated lock, xend on lock busy 63 verifyXendForLockBusy(true, true); 64 // stack lock, xabort on lock busy 65 verifyXendForLockBusy(false, false); 66 // stack lock, xend on lock busy 67 verifyXendForLockBusy(false, true); 68 } 69 70 private void verifyXendForLockBusy(boolean inflateMonitor, 71 boolean useXend) throws Throwable { 72 CompilableTest test = new BusyLock(); 73 74 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( 75 test, 76 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", 77 inflateMonitor), 78 CommandLineOptionTest.prepareBooleanFlag( 79 "UseRTMXendForLockBusy", 80 useXend), 81 "-XX:RTMRetryCount=0", 82 "-XX:RTMTotalCountIncrRate=1", 83 "-XX:+PrintPreciseRTMLockingStatistics", 84 BusyLock.class.getName(), 85 Boolean.toString(inflateMonitor), 86 Integer.toString(TestUseRTMXendForLockBusy.LOCKING_TIME) 87 ); 88 89 outputAnalyzer.shouldHaveExitValue(0); 90 91 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( 92 test.getMethodWithLockName(), outputAnalyzer.getOutput()); 93 94 Asserts.assertEQ(statistics.size(), 1, "VM output should contain " 95 + "exactly one rtm locking statistics entry for method " 96 + test.getMethodWithLockName()); 97 98 long aborts = statistics.get(0).getAborts(AbortType.XABORT); 99 100 if (useXend) { 101 Asserts.assertEQ(aborts, 0L, 102 "Expected to get no aborts on busy lock"); 103 } else { 104 Asserts.assertGT(aborts, 0L, 105 "Expected to get at least one abort on busy lock"); 106 } 107 } 108 109 public static void main(String args[]) throws Throwable { 110 new TestUseRTMXendForLockBusy().test(); 111 } 112 }