Top Five Failures in AJAX Application Performance

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Asynchronous JavaScript and XML or (AJAX) seems to be everywhere on flashy Web 2.0 sites. It's easy to understand why. Web applications like Google maps are easier to use and faster. Unfortunately, performance of AJAX applications varies widely. Differences in XHTML content, parsing, and rendering engines can slow down popular pages to a crawl. Using experience from overseeing the tests of thousands of web applications, I'll explain how to evaluate AJAX performance and where the top five performance problems occur. For examples, I'll use a performance testing tool from the WebLOAD.org project Basic outline 1) Explanation of Ajax performance considerations. XHTML, CSS, XMLHttpRequest XML data transfer JSON 2) Top five performance Gotchas 3) AJAX performance considerations versus other web applications 4) AJAX performance test overview 5) Example 6) Summary of AJAX performance considerations with insight into building high-performanc AJAX applications.

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