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dArkMaGE
Apprentice
Joined: 20 Apr 2002
Posts: 152
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 Posted: Sat Aug 17, 2002 10:44 pm Post subject: gcc and amd |
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please forgive my ignorance but ive heard that the new (3.x) series of gcc has improved optimizations for various athlon processors. I have a box laying around with a duron processor and i was wondering what CHOST setting will produce the best optimizations. (i.e. athlon, i686, i586...) since i dont think there is a specific CHOST=duron-pc-linux-gnu...
also, are there any other similar settings to watch out for when installing gentoo on amd cuz ive only worked with intel until now.
--thanx |
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rac
Bodhisattva
Joined: 30 May 2002
Posts: 6553
Location: Japanifornia
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| Posted: Sat Aug 17, 2002 11:36 pm Post subject: |
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There's lots of active discussion you might be interested in going on over in Tuxisuau's GCC 3.2 thread and AutoBot's CFLAGS Central.
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wilbertnl
Tux's lil' helper
Joined: 01 Jul 2002
Posts: 89
Location: Tulsa, OK, USA
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| Posted: Sun Aug 18, 2002 12:56 am Post subject: Re: gcc and amd |
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| dArkMaGE wrote: | Please forgive my ignorance but I've heard that the new (3.x) series of gcc has improved optimizations for various athlon processors. I have a box laying around with a duron processor and I was wondering what CHOST setting will produce the best optimizations. (i.e. athlon, i686, i586...) since i dont think there is a specific CHOST=duron-pc-linux-gnu...
Also, are there any other similar settings to look for when installing gentoo on AMD cuz I've only worked with Intel until now.
--thanx |
CHOST isn't doing much, you will have an i686-pc-linux-gnu compiler set.
I also have a Duron/800 MHz and I use the following CFLAGS:
| Code: | | -pipe -O2 -fomit-frame-buffer -fforce-addr -march-athlon-tbird |
I have the experience that -O3 is breaking binaries, that's why I'm more modest with the -O flag.
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