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  1. JDK
  2. JDK-8231073

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

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Duplicate
    • Affects Version/s: 14
    • Fix Version/s: tbd
    • Component/s: hotspot
    • Subcomponent:
      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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              • Assignee:
                tschatzl Thomas Schatzl
                Reporter:
                tschatzl Thomas Schatzl
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                  Updated:
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