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Accepted
Shiraz Bhaiji
Asked: 2013-04-27 04:54:44 +0800 CST

Identify which application pool is using CPU / Memory

  • 772
  • We have a web server with many Web Sites.
  • Each web site has it's own application pool.
  • Currently all application pools use the identity of the same domain user.

When one of the sites starts to use 100% of CPU we cannot see which site is responsible. One solution is to give each one a different identity.

Is there a way to identify which application pool is connected to which site without giving them different identities?

windows-server-2008

3 Answers

  1. Best Answer

    IIS 7.x has a built-in worker process view, including (per w3wp process):

    • Application Pool Name.
    • Process ID.
    • State.
    • CPU %.
    • Private Bytes (KB).
    • Virtual Bytes (KB).

    To access this view, simply:

    1. Open up the IIS Manager (inetmgr)
    2. Select the Web Server in the left pane
    3. Double-click the "Worker Processes" feature icon in the center pane
    4. Voila: Worker Process view

    Technet Reference

    • 5

  2. From command line run as administrator in %windir%\system32\inetsrv appcmd list wp

    This will show you the processid associated with each site that you can compare with the task manager.

    • 3

  3. Use Process Explorer from MS - the executable details on the process that is soaking up your CPU, will show you the string that corresponds to your app pool.

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