Re: "Hyperthreading"

I don't know about >120GB drives, however, Hyperthreading works in the 
recent Red Hat released 2.4 kernels.  I'm not sure if that's a back port 
from 2.6 or what.  What happens is the kernel sees 2*n processors where 
n is the number of physical processors in the machine.  I.e. if you have 
a 2 proc 2.4 Ghz, the kernel will see 4 processors.  I'm sure that you'd 
have to run the SMP kernel even on a single proc machine.

Joseph

Richard Troy wrote:

>Hi guys,
>
>I'm just wondering: We just recently - last weekend - decided to "move
>into the modern era" on one of our server boxes running RedHat Linux. Our
>hardware selection was P4 2.6ghz, 800mhz fsb, with a gig of main memory on
>an Intel brand mother board with integrated 1000 Base-T nic. Along the
>way, I noticed that the bios has an option to turn on or off
>"Hyperthreading" - which I presume is just a flavor of pipelining - and
>the supporting documentation warns to not use hyperthreading if your OS
>does not support it...
>
>OK, you saw it coming a mile away: What versions of Linux, if any, support
>hyperthreading? If not, any idea when?
>
>Thanks,
>Richard
>
>P.S. In a similar vein: I know we _were_ limited to around 120gb disks
>with, say RedHat 7.2. Does this limitation still apply? (I vaguely recall
>it had to do with lack of support for ATA-133, IIRC.) If not, got any
>details? Thanks again, RT
>
>  
>