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 * @test 26 * @bug 8031320 27 * @summary Verify that rtm locking is used for stack locks. 28 * @library /test/lib / 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * @build sun.hotspot.WhiteBox 32 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 35 * -XX:+WhiteBoxAPI 36 * compiler.rtm.locking.TestUseRTMForStackLocks 37 */ 38 39 package compiler.rtm.locking; 40 41 import compiler.testlibrary.rtm.AbortProvoker; 42 import compiler.testlibrary.rtm.AbortType; 43 import compiler.testlibrary.rtm.RTMLockingStatistics; 44 import compiler.testlibrary.rtm.RTMTestBase; 45 import compiler.testlibrary.rtm.predicate.SupportedCPU; 46 import compiler.testlibrary.rtm.predicate.SupportedOS; 47 import compiler.testlibrary.rtm.predicate.SupportedVM; 48 import jdk.test.lib.Asserts; 49 import jdk.test.lib.process.OutputAnalyzer; 50 import jdk.test.lib.cli.CommandLineOptionTest; 51 import jdk.test.lib.cli.predicate.AndPredicate; 52 53 import java.util.List; 54 55 /** 56 * Test verifies that RTM-based lock elision could be used for stack locks 57 * by calling compiled method that use RTM-based lock elision and using 58 * stack lock. 59 * Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times, 60 * so total locks count should be the same. 61 * This test could also be affected by retriable aborts, so -XX:RTMRetryCount=0 62 * is used. For more information abort that issue see 63 * {@link TestUseRTMAfterLockInflation}. 64 */ 65 public class TestUseRTMForStackLocks extends CommandLineOptionTest { 66 private static final boolean INFLATE_MONITOR = false; 67 68 private TestUseRTMForStackLocks() { 69 super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM())); 70 } 71 72 @Override 73 protected void runTestCases() throws Throwable { 74 AbortProvoker provoker = AbortType.XABORT.provoker(); 75 RTMLockingStatistics lock; 76 77 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( 78 provoker, 79 "-XX:+UseRTMForStackLocks", 80 "-XX:RTMTotalCountIncrRate=1", 81 "-XX:RTMRetryCount=0", 82 "-XX:+PrintPreciseRTMLockingStatistics", 83 AbortProvoker.class.getName(), 84 AbortType.XABORT.toString(), 85 Boolean.toString(TestUseRTMForStackLocks.INFLATE_MONITOR)); 86 87 outputAnalyzer.shouldHaveExitValue(0); 88 89 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( 90 provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); 91 92 Asserts.assertEQ(statistics.size(), 1, 93 "VM output should contain exactly one rtm locking statistics " 94 + "entry for method " + provoker.getMethodWithLockName()); 95 96 lock = statistics.get(0); 97 Asserts.assertEQ(lock.getTotalLocks(), AbortProvoker.DEFAULT_ITERATIONS, 98 "Total locks count should be greater or equal to " 99 + AbortProvoker.DEFAULT_ITERATIONS); 100 } 101 102 public static void main(String args[]) throws Throwable { 103 new TestUseRTMForStackLocks().test(); 104 } 105 } | 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 * @test 26 * @bug 8031320 27 * @summary Verify that rtm locking is used for stack locks. 28 * @library /test/lib / 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * @requires vm.flavor == "server" & !vm.emulatedClient & vm.rtm.cpu & vm.rtm.os 32 * @build sun.hotspot.WhiteBox 33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 34 * sun.hotspot.WhiteBox$WhiteBoxPermission 35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 36 * -XX:+WhiteBoxAPI 37 * compiler.rtm.locking.TestUseRTMForStackLocks 38 */ 39 40 package compiler.rtm.locking; 41 42 import compiler.testlibrary.rtm.AbortProvoker; 43 import compiler.testlibrary.rtm.AbortType; 44 import compiler.testlibrary.rtm.RTMLockingStatistics; 45 import compiler.testlibrary.rtm.RTMTestBase; 46 import jdk.test.lib.Asserts; 47 import jdk.test.lib.process.OutputAnalyzer; 48 49 import java.util.List; 50 51 /** 52 * Test verifies that RTM-based lock elision could be used for stack locks 53 * by calling compiled method that use RTM-based lock elision and using 54 * stack lock. 55 * Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times, 56 * so total locks count should be the same. 57 * This test could also be affected by retriable aborts, so -XX:RTMRetryCount=0 58 * is used. For more information abort that issue see 59 * {@link TestUseRTMAfterLockInflation}. 60 */ 61 public class TestUseRTMForStackLocks { 62 private static final boolean INFLATE_MONITOR = false; 63 64 protected void runTestCases() throws Throwable { 65 AbortProvoker provoker = AbortType.XABORT.provoker(); 66 RTMLockingStatistics lock; 67 68 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( 69 provoker, 70 "-XX:+UseRTMForStackLocks", 71 "-XX:RTMTotalCountIncrRate=1", 72 "-XX:RTMRetryCount=0", 73 "-XX:+PrintPreciseRTMLockingStatistics", 74 AbortProvoker.class.getName(), 75 AbortType.XABORT.toString(), 76 Boolean.toString(TestUseRTMForStackLocks.INFLATE_MONITOR)); 77 78 outputAnalyzer.shouldHaveExitValue(0); 79 80 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( 81 provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); 82 83 Asserts.assertEQ(statistics.size(), 1, 84 "VM output should contain exactly one rtm locking statistics " 85 + "entry for method " + provoker.getMethodWithLockName()); 86 87 lock = statistics.get(0); 88 Asserts.assertEQ(lock.getTotalLocks(), AbortProvoker.DEFAULT_ITERATIONS, 89 "Total locks count should be greater or equal to " 90 + AbortProvoker.DEFAULT_ITERATIONS); 91 } 92 93 public static void main(String args[]) throws Throwable { 94 new TestUseRTMForStackLocks().runTestCases(); 95 } 96 } |