1 /* 2 * Copyright (c) 2014, 2016, 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 /test/lib / 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * @build sun.hotspot.WhiteBox 34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 35 * sun.hotspot.WhiteBox$WhiteBoxPermission 36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 37 * -XX:+WhiteBoxAPI 38 * compiler.rtm.locking.TestUseRTMXendForLockBusy 39 */ 40 41 package compiler.rtm.locking; 42 43 import compiler.testlibrary.rtm.AbortType; 44 import compiler.testlibrary.rtm.BusyLock; 45 import compiler.testlibrary.rtm.CompilableTest; 46 import compiler.testlibrary.rtm.RTMLockingStatistics; 47 import compiler.testlibrary.rtm.RTMTestBase; 48 import compiler.testlibrary.rtm.predicate.SupportedCPU; 49 import compiler.testlibrary.rtm.predicate.SupportedOS; 50 import compiler.testlibrary.rtm.predicate.SupportedVM; 51 import jdk.test.lib.Asserts; 52 import jdk.test.lib.process.OutputAnalyzer; 53 import jdk.test.lib.cli.CommandLineOptionTest; 54 import jdk.test.lib.cli.predicate.AndPredicate; 55 56 import java.util.List; 57 58 /** 59 * Test verifies that with +UseRTMXendForLockBusy there will be no aborts 60 * forced by the test. 61 */ 62 public class TestUseRTMXendForLockBusy extends CommandLineOptionTest { 63 private final static int LOCKING_TIME = 5000; 64 65 private TestUseRTMXendForLockBusy() { 66 super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM())); 67 } 68 69 @Override 70 protected void runTestCases() throws Throwable { 71 // inflated lock, xabort on lock busy 72 verifyXendForLockBusy(true, false); 73 // inflated lock, xend on lock busy 74 verifyXendForLockBusy(true, true); 75 // stack lock, xabort on lock busy 76 verifyXendForLockBusy(false, false); 77 // stack lock, xend on lock busy 78 verifyXendForLockBusy(false, true); 79 } 80 81 private void verifyXendForLockBusy(boolean inflateMonitor, 82 boolean useXend) throws Throwable { 83 CompilableTest test = new BusyLock(); 84 85 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( 86 test, 87 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", 88 inflateMonitor), 89 CommandLineOptionTest.prepareBooleanFlag( 90 "UseRTMXendForLockBusy", 91 useXend), 92 "-XX:RTMRetryCount=0", 93 "-XX:RTMTotalCountIncrRate=1", 94 "-XX:+PrintPreciseRTMLockingStatistics", 95 BusyLock.class.getName(), 96 Boolean.toString(inflateMonitor), 97 Integer.toString(TestUseRTMXendForLockBusy.LOCKING_TIME) 98 ); 99 100 outputAnalyzer.shouldHaveExitValue(0); 101 102 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( 103 test.getMethodWithLockName(), outputAnalyzer.getOutput()); 104 105 Asserts.assertEQ(statistics.size(), 1, "VM output should contain " 106 + "exactly one rtm locking statistics entry for method " 107 + test.getMethodWithLockName()); 108 109 long aborts = statistics.get(0).getAborts(AbortType.XABORT); 110 111 if (useXend) { 112 Asserts.assertEQ(aborts, 0L, 113 "Expected to get no aborts on busy lock"); 114 } else { 115 Asserts.assertGT(aborts, 0L, 116 "Expected to get at least one abort on busy lock"); 117 } 118 } 119 120 public static void main(String args[]) throws Throwable { 121 new TestUseRTMXendForLockBusy().test(); 122 } 123 }