[gentoo-amd64] x86 processor options for opteron 165

[gentoo-amd64] x86 processor options for opteron 165

[Piotr Pruszczak]

Hi,


As I am now trying to check the x86 dist against amd64, I have just a 
serious question about

CFLAGS="-march= ????? -O2 -pipe"

WHAT should I put into ????? to have full optimizations under x86 
distro? athlon-xp seems to NOT have a few features..and should I add 
msse msse2 msse3 and maybe some other features to USE flags ?

my cpu is Opteron 165 (dual core)


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PS - I just have to check some things, and will NOT dive into x86 only 
:) as I know I will have 30% better performance with x86_64 - BUT I need 
your advice ;))


regards,

-- 
Piotr
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gentoo-amd64@gentoo.org mailing list

Re: [gentoo-amd64] x86 processor options for opteron 165

[Boyd Stephen Smith Jr.]

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On Saturday 11 November 2006 07:08, Piotr Pruszczak 
<p.pruszczak@pro.onet.pl> wrote about '[gentoo-amd64] x86 processor 
options for opteron 165':
> CFLAGS="-march= ????? -O2 -pipe"
>
> WHAT should I put into ?????
>
> my cpu is Opteron 165 (dual core)


From what I understand, -march=opteron is supported even when building 
32-bit code.
-- 
"If there's one thing we've established over the years,
it's that the vast majority of our users don't have the slightest
clue what's best for them in terms of package stability."
-- Gentoo Developer Ciaran McCreesh

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Re: [gentoo-amd64] x86 processor options for opteron 165

[Simon Stelling]

-march=opteron should do fine

-- 
Kind Regards,

Simon Stelling
Gentoo/AMD64 Developer
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gentoo-amd64@gentoo.org mailing list