[rescue] pursuing a VAX

Joshua Snyder josh at imagestream.com
Wed Dec 11 01:35:27 CST 2002


On Tue, 10 Dec 2002, Joshua D Boyd wrote:

> On Tue, Dec 10, 2002 at 02:06:33AM -0500, Joshua Snyder wrote:
>
> > Not sure if any of it is true but seems to make sense when thinking about
> > adding SMT to the P4, you want to have wide issue cpu so the threads have
> > plenty of resources.  As it is now it seems like best reason to enable
> > SMT(no I am not going to call it hyper-threading... ) on the P4 is to make
> > up for the poor utilization caused by the long pipeline and slow filling of
> > the trace cache.  If the P4 had the extra resources we might see a better
> > performance when using SMT.
>
> But where do the P4 Xeons fit into all of this?  That's the main P4 I use.

As far as I know the only difference between the Xeon's and the normal P4
was dual processor support and SMT(hyper-threading).  But now that the
normal P4(3.06Ghz and above) supports SMT the only real difference is dual
processor support.

				josh


>
> --
> Joshua D. Boyd
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