Messages in this thread | | | Date | Fri, 21 Mar 2008 13:52:59 +0100 | From | "Bart Van Assche" <> | Subject | Re: quicklists confuse meminfo |
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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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