From: Nix <nix@esperi.org.uk>
To: Andi Kleen <andi@firstfloor.org>
Cc: xb <xavier.bru@bull.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Xeon 5500 series support in kernel
Date: Sat, 04 Jul 2009 12:41:15 +0100 [thread overview]
Message-ID: <87k52o65gk.fsf@hades.wkstn.nix> (raw)
In-Reply-To: <877hyrbeon.fsf@basil.nowhere.org> (Andi Kleen's message of "2 Jul 2009 10:48:06 +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?
next prev parent reply other threads:[~2009-07-04 11:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-02 8:59 xb
2009-07-02 9:46 ` Andi Kleen
2009-07-04 11:41 ` Nix [this message]
2009-07-04 16:07 ` Andi Kleen
2009-07-04 18:01 ` Morten P.D. Stevens
2009-07-05 9:55 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2009-07-02 7:45 lchampig
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