[gentoo-amd64] Option better in Kernel Processor family

[gentoo-amd64] Option better in Kernel Processor family

[agtdino]

Hello, what is the better option 1 or 4 for an 
x86_64 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux

1. AMD-Opteron/Athlon64 ( Mk8 ) or
4. Generic-x86-64

for default is 4 selected but perhaps is the first option most
optimized.

Regards.


Subarchitecture Type
> 1. PC-compatible (X86_PC)
  2. Support for ScaleMP vSMP (X86_VSMP)
choice[1-2]: 1
Processor family
  1. AMD-Opteron/Athlon64 (MK8)
  2. Intel P4 / older Netburst based Xeon (MPSC)
  3. Intel Core2 / newer Xeon (MCORE2) (NEW)
> 4. Generic-x86-64 (GENERIC_CPU)


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Re: [gentoo-amd64] Option better in Kernel Processor family

[Fabio]

1

On 09/04/07, agtdino <agtdino@teleline.es> wrote:
> Hello, what is the better option 1 or 4 for an
> x86_64 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux
>
> 1. AMD-Opteron/Athlon64 ( Mk8 ) or
> 4. Generic-x86-64
>
> for default is 4 selected but perhaps is the first option most
> optimized.
>
> Regards.
>
>
> Subarchitecture Type
> > 1. PC-compatible (X86_PC)
>   2. Support for ScaleMP vSMP (X86_VSMP)
> choice[1-2]: 1
> Processor family
>   1. AMD-Opteron/Athlon64 (MK8)
>   2. Intel P4 / older Netburst based Xeon (MPSC)
>   3. Intel Core2 / newer Xeon (MCORE2) (NEW)
> > 4. Generic-x86-64 (GENERIC_CPU)
>
>
> --
> gentoo-amd64@gentoo.org mailing list
>
>


-- 
Fabio A. Correa D.

Physics Dept, Universidad Nacional, Bogota, Colombia
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[gentoo-amd64] Re: Option better in Kernel Processor family

[Duncan]

agtdino <agtdino@teleline.es> posted 1176133179.32538.5.camel@gentoo64,
excerpted below, on  Mon, 09 Apr 2007 17:39:39 +0200:

> Hello, what is the better option 1 or 4 for an x86_64 AMD Athlon(tm) 64
> Processor 3000+ AuthenticAMD GNU/Linux
> 
> 1. AMD-Opteron/Athlon64 ( Mk8 ) or
> 4. Generic-x86-64
> 
> for default is 4 selected but perhaps is the first option most
> optimized.

As Fabio says, 1 is better.  4 works, but can't optimize instructions as 
well so may be slightly slower on true AMD64.  1 would be for kernels 
built to load on both Intel and AMD x86_64, and is thus the default.

-- 
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"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

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