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  1. JDK
  2. JDK-8223759

Shenandoah should allow arbitrarily low initial heap size

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    • Subcomponent:
      gc
    • Resolved In Build:
      b21

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        Shenandoah heap regions checks verify that initial heap size covers at least 10 regions. This means the lowest uncommitted size is at least 10*RegionSize, which is a lot for large heaps. This seems to be the reminiscent of old resizing scheme, where Shenandoah could have run with "initial heap" for a long time, before GC code decided to resize. There is little sense it in now: Shenandoah would commit regions up to max_capacity if needed, including during the initial barrage of allocations. We should instead check that "max" heap size covers at least 10 regions.

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                • Assignee:
                  shade Aleksey Shipilev
                  Reporter:
                  shade Aleksey Shipilev
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