Re: hyperthreading on f11 pae kernel?

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Gianluca Cecchi on 09/02/2009 09:10 AM wrote:
> I have an old Dell GX260 with one P4 and 1Gb of ram.
> I installed F11 32 bit and updated it yesterday with latest kernel
> available.
> I noticed that kernel installed was the PAE one, as stated inside
> release notes. Also in other documents I see that only i586 is the other
> available one kernel.
>>From /proc/cpuinfo I see that there is the ht flag, but the system gets
> only one cpu.
> In bios I see no option for enabling/disabling hyperthreading, so that I
> suppose it is enabled by default.... but I could be wrong....
> I have to apply in the mean time a bios update but I would like to ask
> if using PAE implies no ht and if using i586 I can get ht or not in general.


PAE does not imply HT is disabled. I have a 3.06ghz P4 and I'm seeing
two logical processors from /proc/cpuinfo. It seems that your BIOS
disables it by default. I would get in contact with the motherboard
manufacturer.

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