Messages in this thread | | | From | Nick Piggin <> | Subject | Re: [PATCH] SLUB: revert direct page allocator pass through | Date | Sat, 24 Jan 2009 02:41:06 +1100 |
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On Saturday 24 January 2009 02:25:06 Christoph Lameter wrote: > On Fri, 23 Jan 2009, Pekka Enberg wrote: > > On Fri, Jan 23, 2009 at 5:03 PM, Christoph Lameter > > > > <cl@linux-foundation.org> wrote: > > > It seems that we currently need the slab allocators to compensate for > > > the performance problems in the page allocator for these higher order > > > allocs. I'd rather have the page allocator fixed but things are as they > > > are. > > > > So, is that an ACK or a NAK for the patch?-) > > Doesnt that break down Nick's order-0 dominates-the-world scheme break > down?
SLUB is your scheme. And yes it definitely goes against my liking of order-0 allocations regardless of this patch.
> One of the reasons for doing this was to get the page allocator > performance issues exposed and addressed.
Page allocator is never going to be as fast as slab allocator, for issues I explained a long time ago. Not to say it can't be improved, just stating facts.
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