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Re: CPU specific/optimized Debian builds ?

On Thu, 2002-05-23 at 22:26, Thomas Bushnell, BSG wrote:
> Joe Wreschnig <piman@sacredchao.net> writes:
> > > Since GCC optimizations are (by default) carefully tuned, such that
> > > only those which help a given chip are enabled for that chip, I'm
> > > wondering if you can be more precise.
> > I've heard this too (but I've seen about as much evidence of this as I
> > have of the 30% claimed speedups from optimizations, so I don't claim
> > it's right). Apparently it has something to do with e.g. i586
> > optimizations being slower than i386 (no optimization except
> > platform-independant ones) on i686 chips, or vice versa, or Intel
> > optimizations slowing down AMD and vice versa.
> Right.  So you use the i586 optimizations on an i586, and the i386
> optimizations on an i386.  Why is this so confusing?

*shrug* Beats me. It's a problem with distributing binaries definitely,
but since I gather the original poster just wanted to automate pbuilder
and so on, my guess is a lot of people didn't bother to actually read
what he wanted to do and just jumped on him assuming he wanted Debian to
provide binaries.

Alternately, I have a theory that the number of flames on d-d is
constant over any given 8 hour interval, and so with a huge thread
finally dying down, this one (and the WineX one) had to pick up. :P
 - Joe Wreschnig <piman@sacredchao.net>  -  http://www.sacredchao.net
  "What I did was justified because I had a policy of my own... It's
   okay to be different, to not conform to society."
                                   -- Chen Kenichi, Iron Chef Chinese

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