FC5T2 and Development issues, observations, and questions

goemon at anime.net goemon at anime.net
Tue Jan 17 19:32:10 UTC 2006


On Tue, 17 Jan 2006, Dave Jones wrote:
> On Tue, Jan 17, 2006 at 10:29:29AM -0800, Nathan Grennan wrote:
> >  I disagree, I suspect there are still a lot more non-dual/ht systems
> > out there. I just upgraded to dual core A64. They come at quite a
> > premium. It also isn't like a ton of S754 systems and S939 single core
> > systems haven't been sold. I will give you that there are a fair number
> > of HT systems out there, but again they are only on the higher end
> > versions of the processor. In addition may people disable HT worse
> > performance under certain workloads.
> The spinlock operations are almost free on AMD on UP.  They did some real
> magic in their cores to make locked operations really fast compared to Netburst.
> Intel however haven't shipped *any* UP x86-64's. Even the first ones
> they shipped were HT capable.

Is this 100% true for all x86_64 including first gen opterons?

-Dan




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