IVR Utilization info

Dear All,
I am running Asterisk 1.8.9, I want to know the utilization of the IVR… how to get such informations?
please help.

Thanks and Regards

What do you mean with utilization? The CPU usage or how much time have been reached?

Thanks . what I meant with the IVR utilization is:

no of incoming call arrives to the menus.
most caller selected menu

please help

thanks and regards

Well you need to do it via dialplan or consulting the CDR. Via dialplan you need to write & increase in a file or in a DB one variable, same thing for sub-menus.

could you please provide me an example for doing such thing in dial plan?

many thanks in advance