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test/compiler/rtm/locking/TestRTMTotalCountIncrRate.java

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  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.TestRTMTotalCountIncrRate
  39  */
  40 
  41 package compiler.rtm.locking;
  42 
  43 import compiler.testlibrary.rtm.AbortProvoker;
  44 import compiler.testlibrary.rtm.CompilableTest;
  45 import compiler.testlibrary.rtm.RTMLockingStatistics;
  46 import compiler.testlibrary.rtm.RTMTestBase;
  47 import compiler.testlibrary.rtm.predicate.SupportedCPU;
  48 import compiler.testlibrary.rtm.predicate.SupportedVM;
  49 import jdk.internal.misc.Unsafe;
  50 import jdk.test.lib.Asserts;
  51 import jdk.test.lib.process.OutputAnalyzer;
  52 import jdk.test.lib.unsafe.UnsafeHelper;
  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 RTMTotalCountIncrRate=1 RTM locking statistics
  60  * contains precise information abort attempted locks and that with other values
  61  * statistics contains information abort non-zero locking attempts.
  62  * Since assert done for RTMTotalCountIncrRate=1 is pretty strict, test uses
  63  * -XX:RTMRetryCount=0 to avoid issue with retriable aborts. For more details on
  64  * that issue see {@link TestUseRTMAfterLockInflation}.
  65  */
  66 public class TestRTMTotalCountIncrRate extends CommandLineOptionTest {
  67     private TestRTMTotalCountIncrRate() {
  68         super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
  69     }
  70 
  71     @Override
  72     protected void runTestCases() throws Throwable {


  96 
  97         outputAnalyzer.shouldHaveExitValue(0);
  98 
  99         List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
 100                 test.getMethodWithLockName(), outputAnalyzer.getOutput());
 101 
 102         Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
 103                 + "exactly one RTM locking statistics entry for method "
 104                 + test.getMethodWithLockName());
 105 
 106         RTMLockingStatistics lock = statistics.get(0);
 107         if (incrRate == 1) {
 108             Asserts.assertEQ(lock.getTotalLocks(), Test.TOTAL_ITERATIONS,
 109                     "Total locks should be exactly the same as amount of "
 110                     + "iterations.");
 111         }
 112     }
 113 
 114     public static class Test implements CompilableTest {
 115         private static final long TOTAL_ITERATIONS = 10000L;
 116         private static final Unsafe UNSAFE = UnsafeHelper.getUnsafe();
 117         private final Object monitor = new Object();
 118         // Following field have to be static in order to avoid escape analysis.
 119         @SuppressWarnings("UnsuedDeclaration")
 120         private static int field = 0;
 121 
 122         @Override
 123         public String getMethodWithLockName() {
 124             return this.getClass().getName() + "::lock";
 125         }
 126 
 127         @Override
 128         public String[] getMethodsToCompileNames() {
 129             return new String[] { getMethodWithLockName() };
 130         }
 131 
 132         public void lock(boolean forceAbort) {
 133             synchronized(monitor) {
 134                 if (forceAbort) {
 135                     // We're calling native method in order to force
 136                     // abort. It's done by explicit xabort call emitted




  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.TestRTMTotalCountIncrRate
  39  */
  40 
  41 package compiler.rtm.locking;
  42 
  43 import compiler.testlibrary.rtm.AbortProvoker;
  44 import compiler.testlibrary.rtm.CompilableTest;
  45 import compiler.testlibrary.rtm.RTMLockingStatistics;
  46 import compiler.testlibrary.rtm.RTMTestBase;
  47 import compiler.testlibrary.rtm.predicate.SupportedCPU;
  48 import compiler.testlibrary.rtm.predicate.SupportedVM;
  49 import jdk.internal.misc.Unsafe;
  50 import jdk.test.lib.Asserts;
  51 import jdk.test.lib.process.OutputAnalyzer;

  52 import jdk.test.lib.cli.CommandLineOptionTest;
  53 import jdk.test.lib.cli.predicate.AndPredicate;
  54 
  55 import java.util.List;
  56 
  57 /**
  58  * Test verifies that with RTMTotalCountIncrRate=1 RTM locking statistics
  59  * contains precise information abort attempted locks and that with other values
  60  * statistics contains information abort non-zero locking attempts.
  61  * Since assert done for RTMTotalCountIncrRate=1 is pretty strict, test uses
  62  * -XX:RTMRetryCount=0 to avoid issue with retriable aborts. For more details on
  63  * that issue see {@link TestUseRTMAfterLockInflation}.
  64  */
  65 public class TestRTMTotalCountIncrRate extends CommandLineOptionTest {
  66     private TestRTMTotalCountIncrRate() {
  67         super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
  68     }
  69 
  70     @Override
  71     protected void runTestCases() throws Throwable {


  95 
  96         outputAnalyzer.shouldHaveExitValue(0);
  97 
  98         List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
  99                 test.getMethodWithLockName(), outputAnalyzer.getOutput());
 100 
 101         Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
 102                 + "exactly one RTM locking statistics entry for method "
 103                 + test.getMethodWithLockName());
 104 
 105         RTMLockingStatistics lock = statistics.get(0);
 106         if (incrRate == 1) {
 107             Asserts.assertEQ(lock.getTotalLocks(), Test.TOTAL_ITERATIONS,
 108                     "Total locks should be exactly the same as amount of "
 109                     + "iterations.");
 110         }
 111     }
 112 
 113     public static class Test implements CompilableTest {
 114         private static final long TOTAL_ITERATIONS = 10000L;
 115         private static final Unsafe UNSAFE = Unsafe.getUnsafe();
 116         private final Object monitor = new Object();
 117         // Following field have to be static in order to avoid escape analysis.
 118         @SuppressWarnings("UnsuedDeclaration")
 119         private static int field = 0;
 120 
 121         @Override
 122         public String getMethodWithLockName() {
 123             return this.getClass().getName() + "::lock";
 124         }
 125 
 126         @Override
 127         public String[] getMethodsToCompileNames() {
 128             return new String[] { getMethodWithLockName() };
 129         }
 130 
 131         public void lock(boolean forceAbort) {
 132             synchronized(monitor) {
 133                 if (forceAbort) {
 134                     // We're calling native method in order to force
 135                     // abort. It's done by explicit xabort call emitted


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