IE Performance

Topics: Developer Forum
Oct 6, 2009 at 4:41 PM

Hey Dan,

This is Trent over at Raytheon.  I am working with Social Sites, as well as rolling some of my own web parts using your framework.

IE 6 and 7 (I haven't tried IE 8) seem to really choke when rendering the asynchronous content, not sure if it is a mulit-threading issue or what.  FireFox hums right through it.  What happens is the page appears to load but remains frozen until all the ajax web parts completely render.

The page load time is directly correlated to the number of ajax web parts on the page.  Just to give you an idea, on a standard community page with 4 Ajax web parts, IE 7 will hang for about 15 seconds.  If I remove all the web parts, the hang time goes down to about 3 seconds (probably due to the ajax controls on the page that are not webparts).

Have you experienced this yourself, and if so, do you have any suggestions for tweaks we can make to prevent the browser hang.