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  1. JDK
  2. JDK-8150629

Initializing all ParScanThreadStates causes significant unaccounted "Other" times

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Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 9
    • 9
    • hotspot
    • gc
    • b110

    Description

      Applications with many regions in the cset (large young gen) and many threads show that there is a significant amount of unaccounted "Other" times.

      One part of this is caused by initializing and merging the information in all ParScanThreadStates for all threads in the VM pause.

      This CR is about fixing the initialization by moving the ParScanThreadState initialization into the worker threads.

      The PSS merge phase is covered by JDK-8150239.

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          relates to

          Enhancement - null JDK-8150239 Merging information from the ParScanThreadState at the end of GC causes high (unaccounted) pause time costs

          • P3 - Major loss of function.
          • Open

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              tschatzl Thomas Schatzl
              tschatzl Thomas Schatzl
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              Dates

                Created:
                Updated:
                Resolved: