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  1. JDK
  2. JDK-6949259

G1: Merge sparse and fine remembered set hash tables

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Details

    • Enhancement
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • hs18
    • 18
    • hotspot
    • gc
    • b03
    • generic
    • generic

    Description

      During a recent meeting we discussed how to reduce the footprint of the per-region remembered sets (RSets) in G1. Even though we could not come up with a reasonable proposal on how to merge the fine-grain and sparse RSets, one obvious improvement is not to have separate top-level hash tables for the fine and sparse entries and, instead, change the code so that they can share one top-level table.

      This CR might include additional related improvements.

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              tschatzl Thomas Schatzl
              tonyp Tony Printezis
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