On Tue, 22 Apr 2003, Martin J. Bligh wrote:
> Oh, BTW. You're assuming no sharing of any pages in the above. Look what
> happens if 1000 processes share the same page ...
i'm not assuming anything - this is the per-process overhead.
processes have well-known RAM overhead associated to the size (and
fragmentation) of their virtual memory space, primarily caused by
pagetables. My suggestion triples this cost [where pte chains double the
costs], but leaves the scaling factor and generic characteristics the
same.
Ingo
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