FreeBSD on Intel Xeon processor 5160

[Roland Smith]

On Sun, Feb 22, 2009 at 03:41:23PM +0200, Metias Adel wrote:
>    I have IBM x3550 server with Intel Xeon (Dual-Core) processors 5160 @ 
> 3.0 GHz. I need to install FreeBSD 7.0 but I do not know which type of 
> FreeBSD I have to use to take the best performance of the EM64T and 
> Hyperthreading Technologies. Thank you in advance.

It depends.

You should probably use the amd64 version of you want to use more than
4GB of memory. EMT64 is just intel's term for a chip that uses AMD's
64-bit extensions to x86 architecture.

Before installing the amd64 version however, make sure that none of the
ports you want to install has "ONLY_FOR_ARCHS=i386" set in it's
Makefile. (And note that "ONLY_FOR_ARCHS=i386 amd64" is fine).

If you have more servers running i386, and want to centrally compile
kernels and ports, it might be better to stick with i386.

It is not possible to make a general prediction as to which architicture
is faster; that will depend on the workload.

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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