Messages in this thread | | | Date | Tue, 11 Mar 2008 08:13:31 +0100 | From | Nick Piggin <> | Subject | Re: [rfc][patch 2/3] slab: introduce SMP alignment |
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On Thu, Mar 06, 2008 at 09:26:24PM -0800, Christoph Lameter wrote: > Internode alignment is 4k. If you need an object aligned like that then it > may be better to go to the page allocator.
I never got a reply about this. Again: how can the modern slab allocator avoid the need for internode alignment in order to prevent cacheline pingpong on vsmp? Because I'm going to resubmit the SMP_ALIGN patch.
Also, the last I heard about the HWCACHE_ALIGN from you is that it didn't make sense... I see it's merged now, which I appreciate, but I think it is really important that we're on the same page here, so let me know if it still doesn't make sense.
Thanks, Nick
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