What is the worker process in the application pool?
Application pools can contain one or more worker processes. Each worker process represents the work that is done for a website, web application, or web service. You can create a web garden by allowing multiple worker processes to run in a single application pool. In IIS 7 and later, each application pool uses one of two .
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How does the IIS application pool work?
An application pool serves as a container for your applications in IIS. It is a collection of one or more URLs that can be served by a worker process and provides isolation: applications running in one application pool are not affected in any way by other applications running in different application pools .
How does the IIS worker process work?
“An Internet Information Services (IIS) worker process is a Windows process (w3wp.exe) that runs web applications and is responsible for handling requests sent to a web server for a specific application pool.”
What is the maximum number of worker processes?
Re: Maximum number of worker processes You don’t need to have more than one worker process for IIS to use all of its available CPUs. Multiple threads within a single worker will do this for you. That tells the runtime to allow 24 concurrent requests per CPU, instead of the default of 12.
What is the purpose of the IIS application pool?
Application pools are used to separate sets of IIS worker processes that share the same application and configuration boundaries. Application pools are used to isolate our web application to improve security, reliability, availability, and performance, and continue to run without affecting each other.
How many requests can a worker process handle?
The reason your 4 worker processes will be able to handle more than 4 requests is that they will fire up threads to handle more and more requests. The actual request limit depends on the chosen HTTP server, I/O, operating system, hardware, network connection, etc.
Can an IIS server have more than one worker process?
An IIS server can have multiple application pools. A web application is linked to an application pool. An application pool can have more than one worker process (when Web Garden is enabled). A worker process can have multiple application domains.
Can a separate application pool be run in IIS 6.0?
In IIS 6.0, you can force an AppDomain to run in a separate application pool. (For more information, see “IIS 5.x Process Model” and “IIS 6.0 Process Model” in Chapter 1.)
What does PID and applicationpool mean in IIS 7?
The ApplicationPool property represents the application pool to which the worker process belongs. The PID property contains the process ID that uniquely identifies the worker process. You can use the following code to list each worker process PID and status, and its application pool.
What is worker process object in IIS WMI?
The WorkerProcess object in the IIS WMI provider has a GetState method that reveals whether a worker process is starting, running, or stopping. WorkerProcess also has two properties that we are interested in here: ApplicationPool and PID. The ApplicationPool property represents the application pool to which the worker process belongs.