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  1. JDK
  2. JDK-8192810

EnableThreadSMRStatistics should be default off in release builds

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 10
    • Fix Version/s: 10
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b36

      Description

      False sharing on the cacheline and adjacent cacheline causes 100% overhead in extreme benchmark.
      The atomic inc by them self seem to cause ~1% overhead

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8167108 inconsistent handling of SR_lock can lead to crashes

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8192899 EnableThreadSMRStatistics has some hot fields

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

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              Assignee:
              dcubed Daniel Daugherty
              Reporter:
              rehn Robbin Ehn
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                Dates

                Created:
                Updated:
                Resolved: