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  1. JDK
  2. JDK-6490394

G1: Allow heap shrinking / memory unmapping after reclaiming regions during Remark

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    • Subcomponent:
      gc
    • Resolved In Build:
      b18
    • CPU:
      generic
    • OS:
      generic

      Description

      Right now G1 can only expand the heap outside of full GC, never shrink it.

      Given that G1 does incrementally compact the heap, it might be a good opportunity to do that whenever regions are actually made available again (GC cleanup, possibly at the end of the mixed gc cycle).

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              Assignee:
              tschatzl Thomas Schatzl
              Reporter:
              tonyp Tony Printezis
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