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SubjectRe: quicklists confuse meminfo
On Tue, Mar 11, 2008 at 5:07 AM, Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> [ ... ]
>
> This is insane. We add more and more of this NUMA and cpuset and anti-frag
> and page zeroing logic to the page allocator, and then decide that we
> don't actually need to obey any of those rules when we're running lat_proc.
>
> You will never be able to make the page allocator faster than a single list
> of pages. The reason is because we actually *want* some of these checks and
> heuristics in the page allocator.
>
> And I doubt a list of zeroed pages is the right approach. That's just
> adding more complexity for lat_proc AFAIKS.

Is anyone currently working on this
(http://bugzilla.kernel.org/show_bug.cgi?id=9991) ? I think this
should either be fixed or documented as a known issue.

Bart.


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