RE: system process High cpu usage and system idle cpu usage
From: Charles Yang [MSFT] (v-chayan_at_online.microsoft.com)
Date: 02/02/05
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Date: Wed, 02 Feb 2005 09:19:28 GMT
Hi,
Thank you for your post.
>From the description, I understand that you want to know what kinds of
process taking up all the CPU usage. If I am off base, please let me know.
You may check if the CPU usage of the System process is constantly high in
the task management. If so, please follow the detailed steps below to break
down the System process:
1. Start performance monitoring by selecting the Thread object,
%Processor Time counter, and only the instances of the System process.
2. Note the threads that are using large amounts of processor time.
3. Click the System process in the Process window, and then use the
Process Viewer tool (Pviewer.exe) to examine the parent process for the
thread.
NOTE: Process Viewer is located in the Windows NT 4.0 Resource Kit or on
the Windows 2000 Support Tools CD-ROM.
Please follow the link to see how to use Pviewer:
http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/techre
f/en-us/Default.asp?url=/Resources/Documentation/windowsserv/2003/all/techre
f/en-us/pviewer.asp
4. In the Thread window, click the thread number that corresponds to
the thread that you identified in step two.
5. Note the start address in Process Viewer.
6. At the command prompt, run the Process and Thread Status tool
(Pstat.exe) to view the running processes and the loaded module list.
NOTE: Process and Thread Status is located in the Windows NT 4.0 Resource
Kit and in the Windows 2000 Resource Kit.
You can download it from the following link:
http://www.microsoft.com/windows2000/techinfo/reskit/tools/existing/pstat-o.
asp
7. Compare the thread start address to the loaded module list.
8. Identify the location of the thread against the module list.
Usually, this location is a device driver.
9. Contact the vendor of the device driver for additional support.
More information:
295714 How to Break Down the System Process
http://support.microsoft.com/?id=295714
I hope this can clarify your question; If you have any more questions or
concerns, please let me know. I look forward to hearing from you.
Have a nice day!
Charles Yang
Online Partner Support
Partner Support Group
Microsoft Global Technical Support Center
Mailto: v-chayan@microsoft.com
Sincerely,
Charles Yang (MFST)
Microsoft Online Support Engineer
Get Secure! - www.microsoft.com/security
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