Messages in this thread | | | Date | Fri, 27 Aug 2004 21:24:32 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: page fault scalability patch final : i386 tested, x86_64 support added |
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On Fri, 27 Aug 2004, Andrew Morton wrote:
> Christoph Lameter <clameter@sgi.com> wrote: > > > > So I think the move to atomic for rss acceptable? > > Short-term, yes. Longer term (within 12 months), no - 50-bit addresses on > power5 will cause it to overflow.
I would expect the page size to rise as well. On IA64 we already have 16KB-64KB pages corresponding to 256TB - 1PB. Having to manage a couple of billion pages could be a significant performance impact. Better increase the page size.
I still would also like to see atomic64_t. I think there was a patch posted to linux-ia64 a couple of months back introducing atomic64_t but it was rejected since it would not be supportable on other arches. - 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/
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