we are selecting a performance testing solution for web application in ExtJS framework. The goal is to measure complete response time of user's actions, like time from clicking a button to opened and responsive dialog, automatically each night in-house. User typically loads the app once and it operates for the rest of the day using Ajax (URL never changes). So we are not much interested in measuring page load and render time, which is the usual goal of web performance tools. We are also not interested in measuring server load.
Do you have any detailed description of how to do this type of measurement with eValid?