> 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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/