View Full Version : Decrease in performance from 2.2.1 to 3.x (3.0.3, 3.1 and 3.1.1)

18 Jan 2010, 2:29 AM
We scrutinized and found the following performance regression in 3.x:
1. Slow and large stepped sizing action instead of quick and smooth makes unusable the border layout
2. Moving of cursor on tree panel up and down with 100-300 items has significant lag and also scrolling in tree panel is too slow
3. Cursor slowed down focus in menu even it has 3-7 items.

These bugs can be reproduced in IE7, dom model is small, but doing actions from the above showed extreme processor loading.

Any comments or suggestions?

18 Jan 2010, 6:19 AM
Test code required.

Mike Robinson
18 Jan 2010, 9:50 AM
"Extreme processor loading, did you say?" he said, his eyes narrowing suspiciously.

"Sounds to me like you got a big bad bug in your code, and have had it for quite some time."Anything that smells like "extreme processor loading" makes me immediately suspect that there is a serious endless-loop bug going on in your existing code. With the newer software version, the problem has simply become more outrageous.

Jamie Avins
18 Jan 2010, 1:46 PM
Sounds like this could be a css issue. Have you tested this outside of IE7?