High kernel CPU usage

[Guest Heinrich Moser]

Hi!

 

Our Windows Server 2003 is quite slow recently and shows an unusual

lot of kernel CPU activity in Task Manager (the red line in the CPU

utilization graph). The server has more than enough RAM. Is there some

way to find out which (driver?) is causing this?

 

Thanks,

Heinzi

[Guest NeilH]

Re: High kernel CPU usage

 

 

"Heinrich Moser" <usenet@heinzi.at> wrote in message

news:87d4q8m2vb.fsf@msgid.heinzi.at...

> Hi!

>

> Our Windows Server 2003 is quite slow recently and shows an unusual

> lot of kernel CPU activity in Task Manager (the red line in the CPU

> utilization graph). The server has more than enough RAM. Is there some

> way to find out which (driver?) is causing this?

>

> Thanks,

> Heinzi

>

 

Look in the task manager under processes. You will be able to see what is

taking the time.

[Guest Heinrich Moser]

Re: High kernel CPU usage

 

"NeilH" <neil@nospam.uk> writes:

> "Heinrich Moser" <usenet@heinzi.at> wrote in message

> news:87d4q8m2vb.fsf@msgid.heinzi.at...

>> Our Windows Server 2003 is quite slow recently and shows an unusual

>> lot of kernel CPU activity in Task Manager (the red line in the CPU

>> utilization graph). The server has more than enough RAM. Is there some

>> way to find out which (driver?) is causing this?

>

> Look in the task manager under processes. You will be able to see what is

> taking the time.

 

Well, it's not the "one process gone wild" type of problem. The CPU is

acutally mostly idle, but still the machine is extremely slow. I

thought that the fact that, *when* something is done, much time is

spent in kernel mode, could be an indication to the real problem

(probably a hardware problem, which is why I was curious about which

part of the kernel is involved in this).

 

Greetings,

Heinzi

[Guest Brian Cryer]

Re: High kernel CPU usage

 

"Heinrich Moser" <usenet@heinzi.at> wrote in message

news:874pbj8v4p.fsf@msgid.heinzi.at...

> "NeilH" <neil@nospam.uk> writes:

>> "Heinrich Moser" <usenet@heinzi.at> wrote in message

>> news:87d4q8m2vb.fsf@msgid.heinzi.at...

>>> Our Windows Server 2003 is quite slow recently and shows an unusual

>>> lot of kernel CPU activity in Task Manager (the red line in the CPU

>>> utilization graph). The server has more than enough RAM. Is there some

>>> way to find out which (driver?) is causing this?

>>

>> Look in the task manager under processes. You will be able to see what is

>> taking the time.

>

> Well, it's not the "one process gone wild" type of problem. The CPU is

> acutally mostly idle, but still the machine is extremely slow. I

> thought that the fact that, *when* something is done, much time is

> spent in kernel mode, could be an indication to the real problem

> (probably a hardware problem, which is why I was curious about which

> part of the kernel is involved in this).

 

Anything in the event logs? Any high network traffic? Any application

hogging lots of memory (or handles)?

--

Brian Cryer

http://www.cryer.co.uk/brian

[Guest fregan]

Re: High kernel CPU usage

 

 

i noticed the same thing on one of our servers this morning. the task

manager only shows user mode processes, not what is using up kernel

mode processes. still searching for answers on this one...

 

 

--

fregan

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