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  1. JDK
  2. JDK-6889757

G1: enable card mark elision for initializing writes by compiler (ReduceInitialCardMarks)

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: hs17
    • Fix Version/s: hs17
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b04
    • CPU:
      generic
    • OS:
      generic

      Backports

        Description

        ReduceInitialCardMarks-enabled card mark elision of initializing
        writes has been in the code base for a while (since 6u10/hs11) but has
        been disabled for G1. The changes needed to fix 6888898 should
        allow that optimization to be enabled for G1 as well.

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                Assignee:
                ysr Y. Ramakrishna
                Reporter:
                ysr Y. Ramakrishna
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