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  1. JDK
  2. JDK-8248794

Transition JFR Periodic Task Thread to "_thread_in_native" before invoking performance counters

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    • Bug
    • Status: Resolved
    • P3
    • Resolution: Fixed
    • 15, 16
    • 15
    • hotspot
    • jfr
    • b31

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      Description

        This bug will attempt to resolve the problem described in JDK-8243962.

        The bug fix complements the work done in JDK-8245042 and JDK-8245113 to avoid having a JavaThread that is reading OS performance counters, which has proven to be very slow on certain platforms and circumstances, stall a pending safepoint synchronization.

        Transitions will be performed for periodic events EventCPULoad and EventThreadContextSwitchRate.

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                mgronlun Markus Grönlund
                mgronlun Markus Grönlund
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                  Created:
                  Updated:
                  Resolved: