High CPU usage about w3wp.exe

LIAO Eric (Az) 40 Reputation points
2023-12-26T14:05:57.4066667+00:00

Hi,

Our IIS 10 of Azure Server got hight CPU usage about w3wp.exe.

Windows OS is 2016.

We got dump file when the high CPU usage, if anyone can help to analyze dump file.

Or any suggestion about iis server setting we can revised?

Thanks for your help.

Windows development Internet Information Services
Windows for business Windows Server User experience Other
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  1. Reza-Ameri 17,336 Reputation points Volunteer Moderator
    2023-12-26T21:04:35.6+00:00

    Dump files might contains personal and sensitive information and since this is a public forum, we recommend not share them here.

    You may use Windbg to analyze them, have a look at:

    https://learn.microsoft.com/en-us/windows-hardware/drivers/debugger/getting-started-with-windows-debugging

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  1. MotoX80 36,291 Reputation points
    2023-12-27T01:59:56.37+00:00

    I would suggest starting with DebugDiag.

    https://www.microsoft.com/en-US/download/details.aspx?id=58210

    Run the analysis tool and add in your dump file. Run the first few options.

    User's image

    Look at the client connections to see what requests are running. Look for long running requests (time alive). You will need to work with your developers to figure out what their pages are doing.

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    On a running system. monitor currently executing requests.

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