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 on low abort ratio method will be recompiled.
  29  * @library /testlibrary /test/lib /
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @build TestRTMDeoptOnLowAbortRatio
  33  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  34  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  35  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  36  *                   -XX:+WhiteBoxAPI TestRTMDeoptOnLowAbortRatio

  37  */
  38 
  39 import java.util.List;
  40 import jdk.test.lib.*;
  41 import jdk.test.lib.cli.CommandLineOptionTest;
  42 import jdk.test.lib.cli.predicate.AndPredicate;
  43 import compiler.testlibrary.rtm.*;

  44 import compiler.testlibrary.rtm.predicate.SupportedCPU;
  45 import compiler.testlibrary.rtm.predicate.SupportedVM;
  46 import jdk.internal.misc.Unsafe;





  47 


  48 /**
  49  * Test verifies that low abort ratio method will be deoptimized with
  50  * <i>rtm_state_change</i> reason and will continue to use RTM-based lock
  51  * elision after that.
  52  * This test make asserts on total locks count done by compiled method,
  53  * so in order to avoid issue with retriable locks -XX:RTMRetryCount=0 is used.
  54  * For more details on that issue see {@link TestUseRTMAfterLockInflation}.
  55  */
  56 public class TestRTMDeoptOnLowAbortRatio extends CommandLineOptionTest {
  57     private static final long LOCKING_THRESHOLD = 100L;
  58     private static final long ABORT_THRESHOLD = LOCKING_THRESHOLD / 2L;
  59 
  60     private TestRTMDeoptOnLowAbortRatio() {
  61         super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
  62     }
  63 
  64     @Override
  65     protected void runTestCases() throws Throwable {
  66         verifyRTMDeopt(false);
  67         verifyRTMDeopt(true);

  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 on low abort ratio method will be recompiled.
  29  * @library /testlibrary /test/lib /
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @build compiler.rtm.locking.TestRTMDeoptOnLowAbortRatio
  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.TestRTMDeoptOnLowAbortRatio
  38  */
  39 
  40 package compiler.rtm.locking;
  41 
  42 import compiler.testlibrary.rtm.AbortProvoker;
  43 import compiler.testlibrary.rtm.CompilableTest;
  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.internal.misc.Unsafe;
  49 import jdk.test.lib.Asserts;
  50 import jdk.test.lib.OutputAnalyzer;
  51 import jdk.test.lib.Utils;
  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 low abort ratio method will be deoptimized with
  59  * <i>rtm_state_change</i> reason and will continue to use RTM-based lock
  60  * elision after that.
  61  * This test make asserts on total locks count done by compiled method,
  62  * so in order to avoid issue with retriable locks -XX:RTMRetryCount=0 is used.
  63  * For more details on that issue see {@link TestUseRTMAfterLockInflation}.
  64  */
  65 public class TestRTMDeoptOnLowAbortRatio extends CommandLineOptionTest {
  66     private static final long LOCKING_THRESHOLD = 100L;
  67     private static final long ABORT_THRESHOLD = LOCKING_THRESHOLD / 2L;
  68 
  69     private TestRTMDeoptOnLowAbortRatio() {
  70         super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
  71     }
  72 
  73     @Override
  74     protected void runTestCases() throws Throwable {
  75         verifyRTMDeopt(false);
  76         verifyRTMDeopt(true);