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  1. JDK
  2. JDK-6949259

G1: Merge sparse and fine remembered set hash tables

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: hs18
    • Fix Version/s: 18
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b03
    • CPU:
      generic
    • OS:
      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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              Assignee:
              tschatzl Thomas Schatzl
              Reporter:
              tonyp Tony Printezis
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