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  1. JDK
  2. JDK-8135200

Add White Box method that enumerates G1 old regions with less than specified liveness and collects statistics.

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b120

      Description

      Mixed GC works with regions which liveness (ratio of the amount of memory taken by live objects to the region size) is less then a certain value. To write effective tests for Mixed GC we need to be able to obtain such statistics on such regions:
       - total count of old regions
       - total memory of old regions
       - total memory of old regions to be freed
      This could be done with adding a White Box method.

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              • Assignee:
                kzhaldyb Kirill Zhaldybin (Inactive)
                Reporter:
                kzhaldyb Kirill Zhaldybin (Inactive)
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                • Created:
                  Updated:
                  Resolved: