Question regarding JEP 8204089 Timely Reducing Unused Committed Memory
zgu at redhat.com
Fri Jun 1 12:10:43 UTC 2018
> 5)I have not heard of J9 Gencon/Shenandoah providing similar
> functionality. Can you point me to further documentation on which
> feature you model upon?
Shenandoah does provide similar functionality under experimental flags:
It does not need full gc before uncommitting (actually it calls
madvise(MADV_DONTNEED) on Linux)
Also, it has "compact" heuristics that targets low memory footprint by
aggressively uncommitting heap.
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