Messages in this thread | | | Date | Fri, 7 Mar 2008 05:05:40 +0100 | From | Nick Piggin <> | Subject | Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment |
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On Thu, Mar 06, 2008 at 07:58:06PM -0800, Christoph Lameter wrote: > On Fri, 7 Mar 2008, Nick Piggin wrote: > > > Where do I argue that it reduces cacheline contention? All arguments > > I made apply to a UP system equally. > > Huh? I thought you wanted to avoid cacheline alignment on UP to save > memory?
We're talking about HWCACHE_ALIGN in this thread. SMP_ALIGN is for reducing cacheline contention and that's where you can avoid it on UP.
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