I have this CI app that shows an interminable loading process. I want to know what chunk of the page is causing this.
Now I am using Firebug with Google PageSpeed and YSlow. Is there something more appropriate?
In Google Chrome, the "Network" tab from "Developer Tools" can provide details on how long each of the page's resource took to load.
The net panel in Firebug will show you how long each individual resource in a page takes to load.