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Response time, or Responsiveness, is simply how quickly an interactive system responds to user input. In terms of the web, definitions vary. Some researchers define response time from the moment the user submits the request for a page to the moment where the page begins to render. Others extend the final moment until the page is fully rendered in the browser. For the purposes of this blog post, we’ll use the latter definition.
Characterizing the factors that contribute to a system’s responsiveness is not simple, particularly given the complex underpinnings and distributed nature of Today’s web applications. This post discusses a simple formula that can be used to arrive at a ballpark estimate of your application’s response time and help you understand the major factors that influence it.
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