Archived from groups: microsoft.public.windowsxp.hardware (
More info?)
Not a problem. You may find it intesting that many more applications
these days are becoming HyperThreading aware in which case it makes it
advantageous to use HT. You will have to decide what works best for
your computer, but here are a couple of articles showing how things have
changed. Unfortunately, they use benchmarks instead of real life
applications. The problem with benchamarks are that they almost all can
use HT Technology unlike many software programs. It is interesting to
note the changes in the last two years:
First -
http://www.2cpu.com/articles/43_1.html
Second -
http://www.2cpu.com/articles/42_1.html
----
Nathan McNulty
Charlie wrote:
> Excellent!
> First of all, I should have mentioned that they were Xeon
> processors, so I'm sure you are correct that they are
> using Hyperthreading. The person who posted the previous
> thread was also thinking correctly in suggesting that they
> are hyperthreading, though not P4's (Thanks!).
> So not only did you answer my question correctly, but
> you've given me additional helpful information about
> disabling hyperthreading.
> Charlie
>
>>-----Original Message-----
>>If these are high end workstations, they are most likely
>
> on Dual Xeon
>
>>Processors which use HyperThreading Technology. This
>
> will show 4
>
>>Processors, but I do have a suggestion. Since most
>
> programs currently
>
>>don't support this many processors and will not take full
>
> advantage of
>
>>it, it may be best to turn off HyperThreading. This will
>
> actually turn
>
>>into a performance increase in programs that cannot
>
> utilize
>
>>HyperThreading and even some that can.
>>
>>----
>>Nathan McNulty
>>
>>
>>Shadow of James wrote:
>>
>>>Could this be support for 2 hyper-threading Pentium
>
> 4's. Some software will
>
>>>recognize a single hyper-threading P4 as two seperate
>
> processors. Norton
>
>>>smartweep is the on software in particular I had this
>
> happen with.
>
>>>"Charlie" <anonymous@discussions.microsoft.com> wrote
>
> in message
>
>>>news:60b601c4818c$4b67b9b0$a401280a@phx.gbl...
>>>
>>>
>>>>This should be easy -
>>>>
>>>>Windows XP Pro supports "up to 2 symmetric
>
> multiprocessors".
>
>>>>Does that mean 2 processors or 4?
>>>>
>>>>I always understood that NT/2K/XP Workstations could
>>>>support 2 processors. Today we received a high end XP
>
> Pro
>
>>>>workstation for a user who mistakenly believes he needs
>
> one
>
>>>>and when I look at either Device Manager or Task
>
> Manager,
>
>>>>they seem to display 4 processors.
>>>>
>>>>I'm just looking for an explanation and wondering if
>
> this
>
>>>>is new to XP.
>>>>
>>>>Thanks.
>>>
>>>
>>>
>>.
>>