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  1. JDK
  2. JDK-8258142

Simplify G1RedirtyCardsQueue

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Details

    • Enhancement
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 17
    • 17
    • hotspot
    • gc
    • b02

    Description

      G1RedirtyCardsQueue currently contains a local qset for gathering the buffers generated by the current thread, reducing contention on the singleton global qset (JDK-8162929). Having the queue contain a local qset was chosen over having a separate local qset to simplify usage, at the expense of a bit more implementation complexity. However, in the interest of simplifying the PtrQueue hiearchy it would be better to separate them.

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          relates to

          Enhancement - null JDK-8162929 Enqueuing dirty cards into a single DCQS during GC does not scale

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

          Commit Commit openjdk/jdk/1ff0f167

          Review Review openjdk/jdk/1755

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              kbarrett Kim Barrett
              kbarrett Kim Barrett
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              Dates

                Created:
                Updated:
                Resolved: