We are having an issue on all of our web servers where the CPU spikes to 100% and does not come back down until the w3wp.exe *32 process is restarted. From what I've read else where this process is related to IIS and a worker process that closes out old tasks. At any give time there are 4 of the same w3wp.exe *32 processes and they are all using about 200,000 k each. I have collected a few diag dump logs and will send them in a private message if that would help. I've searched everywhere and cannot determine what is causing the issue any help would be greatly appreciated.
Seems some of the Application Pools in your IIS is causing this. you need to identify which application pool is associated with a particular w3wp.exe process, Once you have confirmed that a w3wp.exe process is experiencing high CPU, you will need to collect two pieces of information in order to determine what is causing the problem.
- A Performance Monitor data collector set.
- A user-mode memory dump of the w3wp.exe process.
Please go through the following article for detailed analysis of this IIS application pool issue.
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I followed the steps above and have analyzed the logs. I could only output about 10 pages. If I need to post more let me know.
I'm replying from a different account because I cannot figure out how to verify the other account.