Was Collecting SBUs now, Fast compile engines

Björn Lindberg d95-bli.no at spam.nada.kth.se
Fri Jun 7 14:31:55 PDT 2002


Ian Molton wrote:
> 
> On Fri, 07 Jun 2002 22:11:52 +0200
> Björn Lindberg <d95-bli.no at spam.nada.kth.se> wrote:
> 
> >
> > Ehmm... AFAIK the P4 requires the program to be specially compiled for
> > it to really be at it's best. If it is compiled for PIII generation
> > processors, I believe that the P4 would be at a disadvantage because
> > of this.
> 
> thats intel FUD.
> 
> All CPUS need specific compiler optimisations to work at their best.
> 
> Of course, no-one really cares about this - its real world performance
> that matters.
> 
> Intel just spout this crap because AMD are walking all over them in the
> performance scene.

Exactly. I believe it has something to do with pipelining and branch
prediction. The instructions has to be /very/ well laid out for the P4.
I don't think this is Intel FUD though, because it basically means that
it was badly designed.


Björn
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