IIS 7.0

How to check a list of worker Processes in II7

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In this case we are working under Windows Server 2008, Windows Server 2008 R2. You can view performance information about worker processes running in application pools on your Web server. This information can help you reduce the number of applications that cause problems on your Web server, and help you decide how to fix issues. For example, you  may find that a particular application pool frequently shows a high level of CPU usage, such as 50 or 80 percent. This information, help you to determine which applications run in that application pool, and try to diagnose whether a problem occurs in a particular application or whether you must isolate an application additionally by moving it to another application pool.

IIS 7 lists worker processes with associated application pool names, and provides the following information for each worker process:
Application Pool Name: The name of the application pool. In the case of Web gardens, the same application pool may be listed more than once in the grid to account for different worker processes running in the application pool.
Process ID: The worker process identifier (ID) associated with the application pool.
State: The state of the process, such as starting, running, or stopping.
CPU %: The percentage of time that the worker process has used the CPU since last update. This corresponds to CPU Usage in Task Manager.