Could anybody explain the NUMBER_OF_VIEWS_IN_SESSION parameter ?

I know that it is only used for server side state saving and that it
defines the amount of the latest views that are stored in session.

 

The disadvantage of increasing this parameter is more memory
consumption.

But what is the advantage of it?

It is a cache but I didn't notice any performance alternation if I set
it to 1 or to 20.

 

In which use cases is this session store used ?

- for normal commandLinks/commandButtons ?

- for ajax commandLinks/commandButtons ?

- for normal outputLinks ?

- for browser back button ?

 

Are there any recommendations for setting this parameter ?

 

Thanks

Michael

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