[Help-gnu-radius] Efficient and Various a/v pairs..

[Lewis Watson]

I have a few different classes of users that get different values for
session limit, idle limit, IP, etc etc. . What would be the most efficient
(fastest) way to authenticate and specify session attributes for  users?
By storing the different values in mySQL (we currently have all users/
passwords + more values in a mysql DB), or by making a different profile
in the user or hints files with the different attr/ values within each
profile?
Thanks for your time and help.
Lewis