w3wp.exe using almost 100% of CPU on Windows Server 2003

Posted on 2013-10-07
Medium Priority
Last Modified: 2013-10-09
w3wp.exe is using up most of the CPU on our Windows 2003 Standard server. This seems to have developed over the past week.

Any idea what the problem is?
Question by:edison04
  • 2
LVL 36

Expert Comment

by:Seth Simmons
ID: 39553990
do you have a significant amount of web traffic?
if you restart IIS do you see the same cpu spike again?

Author Comment

ID: 39553993
No significant amount of traffic.

Yes, it reoccurs.

Accepted Solution

ITguy850 earned 2000 total points
ID: 39557764
Have you tried to run process explorer to get more details on the process causing it. Do you have multiple iis sites running on your server?

Author Closing Comment

ID: 39559451
There were many iis sites running on the same application pool. After changing mine to its own application pool, I was able to discern that it was my own app that was causing the problem with iis.

Since I was unable to step through my code because of internet restrictions on the development server, I used WinMerge to compare my current code with an older version and found the offending section of code.

Thanks for your help!

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