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  1. JDK
  2. JDK-8245203

ZGC: Don't track size in ZPhysicalMemoryBacking

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 15
    • Fix Version/s: 15
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b27

      Description

      To make it easier to allow for more concurrent commit/uncommit we should not track the backing "size" in ZPhysicalMemoryBacking. Instead we can add the full physical memory range (from 0 to max_capacity) to the list of uncommitted memory at startup. This removes the need to track and update the backing size (which otherwise needs to be properly synchronized).

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            • Assignee:
              pliden Per Liden
              Reporter:
              pliden Per Liden
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