[gentoo-user] mmx sse sse2 use flags

[gentoo-user] mmx sse sse2 use flags

[Matthew R. Lee]

I need a bit of advice.  I have these use flags enabled for mplayer (mmx, sse, 
sse2)  But I've also seen them as possible use flags for a number of other 
programs, I'm about to install some kind of dvdripper.  So the question is 
should I enable these flags on a case by case basis or stick them in my 
make.config?  And if so should I use all three or just one?
Thanks in advance
Matt
-- 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Dr. Matthew R. Lee
CASEB & ECIM
Departamento de Ecologia,
P. Universidad Catolica de Chile,
Alameda 340, Santiago.
CP 6513677
CHILE

matt@matthewlee.org
mlee@bio.puc.cl

URL: meiochile.matthewlee.org
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Re: [gentoo-user] mmx sse sse2 use flags

[Hemmann, Volker Armin]

On Thursday 12 October 2006 20:13, Matthew R. Lee wrote:
> I need a bit of advice.  I have these use flags enabled for mplayer (mmx,
> sse, sse2)  But I've also seen them as possible use flags for a number of
> other programs, I'm about to install some kind of dvdripper.  So the
> question is should I enable these flags on a case by case basis or stick
> them in my make.config?  And if so should I use all three or just one?
> Thanks in advance
> Matt

depends on your hardware...

but if it does support sse2, I don't see any reason, why not all three flags 
should be enabled - hopefully someone with some asm-knowledge has a better 
answer.
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Re: [gentoo-user] mmx sse sse2 use flags

[Kevin Fullerton]

On 19:13 Thu 12 Oct     , Matthew R. Lee wrote:
> I need a bit of advice.  I have these use flags enabled for mplayer (mmx, sse, 
> sse2)  But I've also seen them as possible use flags for a number of other 
> programs, I'm about to install some kind of dvdripper.  So the question is 
> should I enable these flags on a case by case basis or stick them in my 
> make.config?  And if so should I use all three or just one?
> Thanks in advance
> Matt

Yes - take a look/create /etc/portage/package.use

Cheers

Kevin
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Re: [gentoo-user] mmx sse sse2 use flags

[darren kirby]

quoth the Matthew R. Lee:
> I need a bit of advice.  I have these use flags enabled for mplayer (mmx,
> sse, sse2)  But I've also seen them as possible use flags for a number of
> other programs, I'm about to install some kind of dvdripper.  So the
> question is should I enable these flags on a case by case basis or stick
> them in my make.config?  And if so should I use all three or just one?
> Thanks in advance
> Matt

Have a look at `grep flags /proc/cpuinfo` to see what your proc supports. 
There is then no harm in adding them to your /etc/make.conf USE variable.

Note: I think that some ebuilds use mmx2 while some use mmxext. AFAICT they 
enable the same thing. You may also want to add  3dnow and 3dnowext if they 
are supported by your processor.

-d
-- 
darren kirby :: Part of the problem since 1976 :: http://badcomputer.org
"...the number of UNIX installations has grown to 10, with more expected..."
- Dennis Ritchie and Ken Thompson, June 1972
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Re: [gentoo-user] mmx sse sse2 use flags

[maxim wexler]

What does $cat /proc/cpuinfo say on the "flags" line?
If they show up there I'd say add them. Because the
cpu is at the center of the system they ought to be
available for all of portage's tasks. My $.02.

--- "Matthew R. Lee" <gentoo@matthewlee.org> wrote:

> I need a bit of advice.  I have these use flags
> enabled for mplayer (mmx, sse, 
> sse2)  But I've also seen them as possible use flags
> for a number of other 
> programs, I'm about to install some kind of
> dvdripper.  So the question is 
> should I enable these flags on a case by case basis
> or stick them in my 
> make.config?  And if so should I use all three or
> just one?
> Thanks in advance
> Matt
> -- 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> Dr. Matthew R. Lee
> CASEB & ECIM
> Departamento de Ecologia,
> P. Universidad Catolica de Chile,
> Alameda 340, Santiago.
> CP 6513677
> CHILE
> 
> matt@matthewlee.org
> mlee@bio.puc.cl
> 
> URL: meiochile.matthewlee.org
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> -- 
> gentoo-user@gentoo.org mailing list
> 
> 


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