RFR: bug: Timely Reducing Unused Committed Memory

Rodrigo Bruno rbruno at gsd.inesc-id.pt
Tue Sep 4 15:04:42 UTC 2018

Hi Thomas,

Did you ever notice an improvement in heap usage after the first such
> attempt?
> There should be none except for memory held by j.l.ref.References.
> What I want to get at, as a later improvement, we could think of just
> skipping those then (as except as mentioned for the j.l.ref.References
> issue there would be "no" difference).
I didn't devise any experiments to measure memory usage. However, we can
obviously do that.

The new version of the patch regarding


can be found at


This version already includes idle compaction (Full GC is optional) and
your previous comments as well.

Let me know what you think.

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