Re: i386 kernel not included? (Mike A. Harris)

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Mike,

Thanks for the succinct and very clear explanation. I have come to many
of the same conclusions. There are few apps which do benefit from
-march=i686, but if one aims to increase performance for a given
application other compiler optimizations will have a more dramatic
benefit. 

Apps which use lots of floating point code can <<sometimes>> benefit
from options like -ffast-math. My short bit of testing shows
-march=athlon or -march=athlon-xp makes a bigger difference on
8.0(because of gcc 3.2), than variations on x86.  

Simply upgrading from gcc 2.96 from 3.2 probably gains the most. :O

YMMV

Perhaps this should be posted on redhat.com and/or in the user docs..

Peter





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