[ale] Detecting multiple CPUs

[Michael D. Hirsch]

On Monday 08 September 2003 10:03 am, matty91 at bellsouth.net wrote:
> Do the later kernels provide hyperthreading info in /proc/cpuinfo?

Maybe in the boot messages.  I'll have to look when I get home on my wife's 
system.  (I was goinng to write "On my wife's box", but I thought better 
of it.  ;-)

Michael

> - Ryan
>
> On Mon, 8 Sep 2003, Michael D. Hirsch wrote:
> > Is it possible to tell the difference between a dual CPU system and a
> > Hyperthreading CPU?  I have a new system supposedly with 2 CPUs and
> > cat /proc/sysinfo does show 2 CPUs.  The CPUs are 2.4 GHz Xeons. 
> > Don't those do hyperthreading?  My wife's 2.4 GHz P4 also shows 2
> > CPUs, though I know there is only 1 CPU because it is a hyperthreading
> > CPU.  If the Xeons hyperthread, too, it means that we are not getting
> > both CPUs--and I thought Xeons will hyperthread.
> >
> > So, how can I tell if both hardware CPUs are working?
> >
> > Thanks,
> >
> > Michael
> >
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> Ryan Matteson - UNIX Administrator | GPG ID: 92D5DFFF
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