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Re: The new scheduler and x86 CPUs


Jakub Jelinek wrote:
> 
> On Mon, Aug 28, 2000 at 10:56:33PM -0400, Vladimir N. Makarov wrote:
> > > Is Ultrasparc III out-of-order?  I thought it was in-order too.  There's
> > > nothing in
> > >   http://www.sun.com/sparc/UltraSPARC-III/USIIITech.html
> > > that suggests it's OOO.  So it isn't all that surprising to me that it's
> > > slow as well.
> > >
> >
> > Even UltrasparcI was an OOO processor.
> 
> Depends on what you imagine under OOO.
> UltraSPARC-I up to III always issue insns in program order AFAIK, they may
> complete out of order, but I guess that is not what is discussed here.
> 

I was wrong. It is not an OOO processor. It also needs a good scheduler
then.  It is the same approach as powerpc 750.


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