The AJAX Profiling Extensions provide much-needed visibility into often complex, web client-side interactions for the first time. You do not need to download and install any additional software, plug-ins, or ActiveX controls on the machine where the AJAX web client code is running to use the AJAX Profiling Extensions to gather JavaScript execution-time data. Also, this works with any web browser, including, of course, the latest version of Internet Explorer. AJAX Profiling Extensions is an add-on to the performance tools that are available in Visual Studio Team System 2008 Development Edition and Visual Studio Team Suite, extending them to allow you to profile the client-side JavaScript code in your AJAX application. Developed in collaboration with Microsoft Research, AJAX Profiling Extensions automatically rewrites JavaScript functions to enable instrumentation that measures and logs each function’s performance data. This performance data is then periodically uploaded from the client browser to the IIS web server, where it is collected and available for analysis.
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