On Friday 12 September 2003 13:32, dave ! wrote:
> On Thu, 11 Sep 2003 20:29:21 -0700, Mark Knecht wrote:
> >I'm in make xconfig and do not see the same Athlon choices I had under
> >2.4.20. Is this correct (maybe they renamed it) or a bug?
>
> The athlon-xp option came from a patch...
>
> Since about a month ago this little note got added to arch/i386/Makefile
> in the 2.6 test kernels, and probably 2.4.22 (don't have it to check)
>
> "
> # Please note, that patches that add -march=athlon-xp and friends are
> pointless.
> # They make zero difference whatsosever to performance at this time.

They should really add it back in. True, for gcc32, it didn't make any 
difference. However, gcc33 adds proper support for sse and such which should 
have a (minimal) impact on kernel performance.

Jason

P.S. Don't go upgrading to gcc33 just yet unless you're happy to run ~x86 coz 
not everything compiles properly yet!

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