performance of JSF on server side

[sandhya mridul]

Hello,

We are planning out a design for an application to be implemented in Java. For this, we are considering to use JSF in place of Struts for the presentation layer.
I am new to JSF and from what I understand, in JSF, the server executes a lot of UI code that is finally sent to the client for rendering. I need to know what effect this has on the performance of the application.

The execution does consume server CPU processing time, so how scalable is JSF?Since our app would need to support some 60,000 users would JSF be that scalable?

Also which is best application server to use for JSF?

Pls. guide me as to where I could find information on such and related issues... some website URL or book if possible.

Thanks in advance....

[Abhijeet Singh]

The processing of the Components on the Server side wont be a problem, but some of the JSF components require to be in memory completely ex. DataTable. So if you are not using these heavy components it is easily scalable.