i686-gcc vs i586-Suse Linux

[Martin Krischik]

Am 06.06.2007, 23:30 Uhr, schrieb Atwood, Robert C  
<r.atwood@imperial.ac.uk>:

> How much does it matter whether the gcc is built with i686 options
> versus i586 or even i386, assuming you're actually using i686 type of
> processor, if you then use that gcc to build an application using i686
> options?

Recompiling some cygwin tools (cycwin-pc-i386) to pentium4-pc-cygwin  
improved performace quite a bit. So yes it matters.

Martin