Messages in this thread | | | Date | Wed, 16 Oct 2002 11:14:05 -0700 | From | Samuel Flory <> | Subject | Re: Kernel reports 4 CPUS instead of 2... |
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Richard B. Johnson wrote:
>On Wed, 16 Oct 2002, Samuel Flory wrote: > > > >>>On Wed, 16 Oct 2002, Mark Cuss wrote: >>> >>> >>> >>> >>>This is the correct behavior. If you don't like this, you can >>>swap motherboards with me ;) Otherwise, grin and bear it! >>> >>> >>> >>> >>> >> >> Wouldn't it be easier just to turn off the hypertreading or jackson >>tech option in the bios ;-) >> >> >> > >Why would you ever want to turn it off? You paid for a CPU with >two execution units and you want to disable one? This makes >no sense unless you are using Windows/2000/Professional, which >will trash your disks and all their files if you have two >or more CPUs (true). > > >
Actually I can think of 3 obvious reasons:
1)Your app is cache bound, and not cpu bound. 2)Your system tends to only run 1 or 2 non thread activities at a time. 3)You don't trust hyperthreading.
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