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

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P3
    • hs17
    • Affects Version/s: hs17
    • Component/s: hotspot
    • gc
    • b04
    • generic
    • generic

        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.

              Assignee:
              Y. Ramakrishna
              Reporter:
              Y. Ramakrishna
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