27  * @bug 8031320
  28  * @summary Verify that rtm locking is used for stack locks.
  29  * @library /test/lib /
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  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 compiler.testlibrary.rtm.predicate.SupportedCPU;

  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 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(

  27  * @bug 8031320
  28  * @summary Verify that rtm locking is used for stack locks.
  29  * @library /test/lib /
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  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 compiler.testlibrary.rtm.predicate.SupportedCPU;
  47 import compiler.testlibrary.rtm.predicate.SupportedOS;
  48 import compiler.testlibrary.rtm.predicate.SupportedVM;
  49 import jdk.test.lib.Asserts;
  50 import jdk.test.lib.process.OutputAnalyzer;
  51 import jdk.test.lib.cli.CommandLineOptionTest;
  52 import jdk.test.lib.cli.predicate.AndPredicate;
  53 
  54 import java.util.List;
  55 
  56 /**
  57  * Test verifies that RTM-based lock elision could be used for stack locks
  58  * by calling compiled method that use RTM-based lock elision and using
  59  * stack lock.
  60  * Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times,
  61  * so total locks count should be the same.
  62  * This test could also be affected by retriable aborts, so -XX:RTMRetryCount=0
  63  * is used. For more information abort that issue see
  64  * {@link TestUseRTMAfterLockInflation}.
  65  */
  66 public class TestUseRTMForStackLocks extends CommandLineOptionTest {
  67     private static final boolean INFLATE_MONITOR = false;
  68 
  69     private TestUseRTMForStackLocks() {
  70         super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM()));
  71     }
  72 
  73     @Override
  74     protected void runTestCases() throws Throwable {
  75         AbortProvoker provoker = AbortType.XABORT.provoker();
  76         RTMLockingStatistics lock;
  77 
  78         OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
  79                 provoker,
  80                 "-XX:+UseRTMForStackLocks",
  81                 "-XX:RTMTotalCountIncrRate=1",
  82                 "-XX:RTMRetryCount=0",
  83                 "-XX:+PrintPreciseRTMLockingStatistics",
  84                 AbortProvoker.class.getName(),
  85                 AbortType.XABORT.toString(),
  86                 Boolean.toString(TestUseRTMForStackLocks.INFLATE_MONITOR));
  87 
  88         outputAnalyzer.shouldHaveExitValue(0);
  89 
  90         List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(