On Tue, Aug 31, 2004 at 10:30:33AM +0200, Arjan van de Ven wrote:
On Tue, 2004-08-31 at 10:21, Ralf Corsepius wrote:
> Hi,
>
> Question: Shall Fedora Extras support ix86 optimized packages but
> i386-compiled packages rsp. under shall circumstances shall Fedora
> Extras support such packages?
>
> Background: Some folks have started to add i686-built application
> packages in addition to i386-built packages to Fedora Extras, claiming
> these i686-built, "optimized packages" would result into much better
> performance of these packages ("up to factor 2").
those optimized packages aren't faster; at least I find it hard to
believe.... esp on p4 and athlon cpus where cmov is no gain again ;)
Well, SSE/SSE2 can help for graphic/video/audio applications.
But there .i686.rpm doesn't help you, either the application
selects whether to use SSE/SSE2 or not at runtime, or the packages can
have separate sse2 and normal libs in one package:
/usr/lib/libfoo.so.1
/usr/lib/sse2/libfoo.so.1
Jakub