[gentoo-amd64] Re: sempron make options

[Duncan <1i5t5.duncan@cox.net>]

Alvin Thompson posted <1127513537.21021.41.camel@localhost.localdomain>,
excerpted below,  on Fri, 23 Sep 2005 18:12:17 -0400:

> anyone know what the best make options are for sempron processors?
> should i use athlon or amd64 or something else?

To date (thru 4.0.1), gcc treats all the amd64 family the same -- they are
all aliased to each other, so to with them, it doesn't matter.

I've seen some debate on the the newer processors, however, which have
sse3, sempron included, AFAIK, and can't say I know enough about that to
say for sure what's best there.  For the vast majority of packages, any of
the amd64 aliases will be optimal as they'd not likely use sse3 anyway. 
The exception would be any heavy multimedia or video, particularly
encoding and decoding, but also possibly xorg/mesa.  On that stuff, sse3
could make a difference and I don't know what would be best. (Note that in
practice, support for sse3, as the newest addition in any case, may not be
fully optimized yet, particularly on 64-bit. Look for better support there
by gcc 4.1 or 4.2, after the potential of gcc 4 has had some time to
mature as well.)

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


-- 
gentoo-amd64@gentoo.org mailing list