[plug] hyperthreading

[Sacha Schlegel]

Hi Tony


On Wed, 2003-12-10 at 15:14, Tony Breeds wrote:
> On Wed, Dec 10, 2003 at 02:44:35PM +0800, smclevie wrote:
> > Hi all,
> > 
> > I wonder if someone could inform me of the necessary steps to enable 
> > hyperthreading (P4 2.4G Pentium)?
> 
> Select pIV as your processor
> Enable Smymetric Multiprocessing
> Enable ACPI (at the veryleast enable "ACPI CPU enumeration only"

I cannot find this "ACPI CPU enumeration only" option in 2.6.0-test11.
Do you know its .config entry name?

Sacha


> 
> when you build your kernel
>  
> > I thought I had enabled the option in a kernel build ...
> 
> The kernel I built for you was (but I guess it's loong gone now).  You
> can tell for sure by grepping /proc/cpuinfo for the string "^proc"
> 
> ie.
>   pythia:~# grep ^proc /proc/cpuinfo
>   processor       : 0
>   processor       : 1
> Is a hyperthreading pIV
> 
>   balder:~# grep ^proc /proc/cpuinfo
>   processor       : 0
> Is a pIII non-nt machine.
> 
> > I would like to see two tuxes at the top of screen also.
> 
> That will only work if you enable frame-buffer support at the kernel
> build time.  It will only last until you start X or you run your first
> "clear" on the console.
> 
> Yours Tony
> 
>         Linux.Conf.AU       http://conf.linux.org.au/
>         Jan 12-17 2004      The Australian Linux Technical Conference!
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Sacha                                   Schlegel
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sacha at schlegel.li                www.schlegel.li
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