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  1. JDK
  2. JDK-8233061

ZGC: Enforce memory ordering in segmented bit maps

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 14
    • Fix Version/s: 14
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b23

      Description

      In ZGC, bitmaps are lazily cleared in a segmented fashion. In this scheme, liveness is determined by looking at a counter, a segment bit map and finally the flat bit map structure. The accesses for the various stages need to be ordered properly.

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            • Assignee:
              eosterlund Erik Ă–sterlund
              Reporter:
              eosterlund Erik Ă–sterlund
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              • Created:
                Updated:
                Resolved: