F9 and move to Hyperthreaded processor

[Michael Cronenworth]

Jerry Feldman wrote: 
> Be wary of hyperthreading. AFAIK, Intel no longer supports this 
> feature in their processors. First, there are a number of applications 
> that actually suffer from hyperthreading. For instance, my company's 
> product runs significantly slower on a system with hyperthreading 
> enabled.  So, make sure you runs some tests. It was a good idea to 
> extend the old single core processors. A colleague of mine also found 
> some bugs in the microcode.
>

Hyperthreading is returning in the new Intel CPUs (i7). FYI.