Number of CPU's

20 Jul 2005 10:47 AM

Ben Rum

My server has 2 CPU's, however the Environment variable
"NUMBER_OF_PROCESSORS" is set to 4.

In Task Manager I see 4 CPU's working, however there's physically only 2..
So what am I looking at?

20 Jul 2005 10:50 AM

Daniel

Ben Rum wrote:

> My server has 2 CPU's, however the Environment variable
> "NUMBER_OF_PROCESSORS" is set to 4.
>
> In Task Manager I see 4 CPU's working, however there's physically only 2..
> So what am I looking at?
>
>

If they are Pentium 4's then you may be seeing the result of
Hyperthreading. Check the CPU spec. If so, this is normal behaviour.

--

Daniel
MCSE, MCP+I, MCP in Windows 2000/NT

--------------------------------------
remove the 2nd madrid from my mail address to contact me.

20 Jul 2005 12:51 PM

Kristofer Gafvert [MVP]

Hello,

You are probably seeing hyper-threading. You can find more information on
this on the Intel website:

http://www.intel.com/technology/hyperthread/

--
Regards,
Kristofer Gafvert (IIS MVP)
www.gafvert.info - My Articles and help
www.ilopia.com

Ben Rum wrote:

Show quoteHide quote

> My server has 2 CPU's, however the Environment variable
> "NUMBER_OF_PROCESSORS" is set to 4.
>
> In Task Manager I see 4 CPU's working, however there's physically only
2..
> So what am I looking at?