0 - 2 of 2 tags for delta cpu

Hi All,
i would like to know in depth about delta, impact and request CPU's, to know about them please share any links, white papers, docs if any..........
 
thanks in advance.......

I am creating a portlet that will be able to graph certain variables such as delta CPU by user name over a day. I know that I can pull all the session data grouped by user name, but I was wondering if there is a method or DAO that you could recommend that would give me a list of user names for a system.