Thursday, October 24, 2013

An Introduction to Client Latency

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Let's face it, users are impatient. They demand a blazingly fast experience and accept no substitutes. Google performed a study in 2010 which proved that when a site responds slowly, visitors spend less time there.

Speed as perceived by the end user is driven by multiple factors, including how fast results are returned and how long it takes a browser to display the content.

So while the effects of poor performance is obvious, it makes one wonder about the relationship between client latency and the "perception of speed". After all, the user can trigger many state change events (page load, submit a form, interact with a visualization, etc) and all these events have an associated latency to the client. However, are certain types of latency more noticable to the user then others?

Let's look at all the different ways latency can creep in, throughout the ‘request-to-render' cycle.

Read more here

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