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  1. JDK
  2. JDK-8276304

G1: Factor out G1CardSetFreePool and related classes from G1CardSetXxx

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    • gc

    Description

      Currently, only the card sets (remembered sets) use G1CardSetFreePool to give back memory to OS.

      After JDK-8254739, this memory reclaiming mechanism could be reused by evacuation failure too. This is a preparation change to allow reuse of this code.

      I plan to do this in about 3 steps to smooth the review process:
        1. move G1CardSetFreePool and related classes to new file, rename these classes
        2. refactor these classes to support freeing other freelist
        3. some necessary cleanup

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          is blocked by

          Sub-task - The sub-task of the issue JDK-8277542 G1: Move G1CardSetFreePool and related classes to separate files

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Enhancement - null JDK-8276670 G1: Rename G1CardSetFreePool and related classes

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          relates to

          Enhancement - null JDK-8276670 G1: Rename G1CardSetFreePool and related classes

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          JEP - Java Enhancement Proposal JDK-8276094 JEP 423: Region Pinning for G1

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Targeted

          Enhancement - null JDK-8280106 G1: Make reclaiming memory functionality more general in G1SegmentedArrayFreePool and G1SegmentedArrayFreeMemoryTask

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

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              mli Hamlin Li
              mli Hamlin Li
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