Dual P4 2.4Ghz Xeon With Hyperthreading enabled...

Brooks Davis brooks at one-eyed-alien.net
Tue Aug 12 18:34:17 PDT 2003


On Tue, Aug 12, 2003 at 06:19:25PM -0700, Scott M. Likens wrote:
> On Tue, 2003-08-12 at 15:41, Brooks Davis wrote:
> > On Tue, Aug 12, 2003 at 03:38:29PM -0700, Scott M. Likens wrote:
> > > 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?
> > 
> > There is no option in current.  Instead, you use the sysctl
> > machdep.hlt_logical_cpus to indicate if you want to use the logical
> > cpus.
> 
> For clarification, setting this to 2 would mean 2 processor's to
> process?

No.  It's a boolean.

-- Brooks

-- 
Any statement of the form "X is the one, true Y" is FALSE.
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