Posts Tagged ‘http’

georgi

Building fast web sites with Yahoo!’s Exceptional Performance Team

Saturday, November 15th, 2008

Yahoo!’s Developer Theater has always been a priceless resource for web designers and developers. But what I have found the most useful video for me was Steve Souders’ High performance websites presentation. For those of you who don’t have the time to watch the whole video – here is a short summary.

Like many things in our Universe, web performance obeys Pareto’s 80-20 principle – 20% of the elements of a website cause 80% of the effects on the performance. And if we try to slightly reduce the time spent on loading those 20% of the elements, we can get much more than 20% increase in speed. (more…)

georgi

Highly responsive ajax applications without excess requests and bandwidth waste?

Saturday, November 15th, 2008

Ajax is not as powerful as one would imagine

If you have ever tried to develop a robust ajax application, you have probably reached a point where you want the client to be notified about a change on the server in “real time”. The most simple example – you need to create a chat application and want the client to instantly receive new messages upon their arrival on the server. And, if you like me, are not a fan of Flash ( which may be one of your major flaws ) and want to achieve this using only ajax techniques, you have found out that is not that simple. (more…)