Re: Xeon 5500 series support in kernel

From: Andi Kleen
Date: Thu Jul 02 2009 - 05:46:30 EST


xb <xavier.bru@xxxxxxxx> 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)

> In particular, should we set CONFIG_GENERIC_CPU or CONFIG_MCORE2 on
> such processors ?

The kernel doesn't really care about compiler optimizations,
so it shouldn't make any difference. CONFIG_GENERIC_CPU is fine.

-Andi
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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