Dual P4 2.4Ghz Xeon With Hyperthreading enabled...

Well friend of mine just landed a Dual P4 2.4Ghz Xeon with
Hyperthreading Enabled, and yet I know there's a hyperthreading option
in 4.8-RELEASE but I don't see one at ALL in 5.1?

am I suddenly blind or do I need to cvsup to CURRENT to take proper
advantage?

I am aware of a few problems where sometimes process's can be sent to a
virtual process/limbo which is why i'm trying to get more information on
this.

Any information would be greatful, thanks.


-- 
"I think we ought to be out there doing what we do best - making large
holes in other people's countries." - George Carlin