Messages in this thread |  | | | Subject | Re: Xeon 5500 series support in kernel | | From | Nix <> | | Date | Sat, 04 Jul 2009 12:41:15 +0100 |
On 2 Jul 2009, Andi Kleen outgrape:
> xb <xavier.bru@bull.net> writes: > >> I wonder if there are specific kernel configuration parameters that >> allow to optimize performances on the recent Xeon 5500 processors (aka >> Nehalem). > > The most important optimization is to use a 64bit kernel with NUMA > support enabled (even if you use 32bit userland)
Surely NUMA only benefits you if you have a >1 socket system? Where's the nonuniform access on a 1-socket machine? Every core is as far from all the RAM as every other core, isn't it?
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