"Hyperthreading"

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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

-- 
Richard Troy, Chief Scientist
Science Tools Corporation
rtroy@xxxxxxxxxxxxxxxx, 510-567-9957, http://ScienceTools.com/



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