High kernel CPU usage

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Heinrich Moser

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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
 
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.
 
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
 
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
www.cryer.co.uk/brian
 
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