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  1. JDK
  2. JDK-8231073

Second-pass CLD walk should be claimed by a single thread

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    • Enhancement
    • Resolution: Duplicate
    • P4
    • tbd
    • 14
    • hotspot
    • gc

    Description

      During a concurrent start pause when class unloading, we do two passes over the CLD.

      In the first pass we let one thread claim the CLD work; in the second pass we do not, which means that threads do unnecessary duplicate work as the phase walks over the CLD singly-linked list (i.e. there is no work distribution anyway).

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          duplicates

          Enhancement - null JDK-8159984 Remove call to ClassLoaderDataGraph::clear_claimed_marks during the initial mark pause

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

          Enhancement - null JDK-8231117 Remove G1EvacuationRootClosures::raw_strong_oops()

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

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              tschatzl Thomas Schatzl
              tschatzl Thomas Schatzl
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                Updated:
                Resolved: