Case study: IE8 Developer Toolbar - A step forward to measure RIA performance

With the new wave of RIA, the applications are relying more on JavaScript for the rich user experience. The two key factors which influence the performance a.k.a end user experience are: JavaScript and the Client Processing Speed. With a standard client processor, it is not very uncommon to find plateau of high CPU utilization on […]

With the new wave of RIA, the applications are relying more on JavaScript for the rich user experience. The two key factors which influence the performance a.k.a end user experience are: JavaScript and the Client Processing Speed. With a standard client processor, it is not very uncommon to find plateau of high CPU utilization on the client side for inefficient JavaScript rendering logic.

To measure the time taken by JavaScript code at the client was a pain. Sometimes we used a tool, AjaxView, but it has it's own limitations (e.g. doesn't work with HTTPS, separately run a proxy and change the browser proxy etc.). In couple of my engagements where the site uses HTTPS , I preferred an age old method: counting the ticks from my wrist watch till the JavaScript rendering ends. But, with the arrival of IE8 developer tool, my life is too cool now form this perspective. I can profile, measure and support my findings with something solid on black and white. There is a good article from MSDN which talks about it.

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