[CLOSED] [1.2] IE8 Performance

[softmachine2011]

Hi,

In our MVC application (similar to ASP.NET MVC sample), we build all our modal windows dynamically.

One of these windows is the main and complex maintenance in the application. Many tabs in this window are loaded using Partial Views inside Iframes.

We found a great performance drop in IE8 with respect IE9, and obiously still greater with respect Firefox and Chrome.

We have gzip option actived and also release mode. We have performed too some improvements, including f.e. push() method use as explained here:
http://www.scottlogic.co.uk/2010/10/...y-performance/

Are there some other tips or advices regarding Ext.NET controls that may improve performance in IE8?

Thanks.

[Vladimir]

Why do you use iframes? IFrames are too heavy for browsers (especialy, for IE). Ext.Net supports dynamic rendering and you can use it without iframes

Can you provide more details? Performance of what? Client side rendering?
Can you provide working example (online is ok) to test it?

[Daniil]

Hi,

Not special optimization for IE8, just common things:
Application optimizing

[softmachine2011]

Why do you use iframes? IFrames are too heavy for browsers (especialy, for IE). Ext.Net supports dynamic rendering and you can use it without iframes

Can you provide more details? Performance of what? Client side rendering?

Well, we must re-use some functionality in several maintenances and it was performed with Partial Views without defining Mode property.

As we know iframe could be a drawback, we remove two iframes and place code in-line. In first case we had a much better performance, but in the second case we had even worst performance than before. So for us this wasn't a conclusive point, and remove iframes and place code in-line would take us an expensive time in work and test.

We compared only client times between several navigators, not server or database side times (which obviously could be improved but won't affect rendering times between navigators).

Chrome or Firefox times are acceptable, IE9 could be better, but IE8 times are drastically worst.

[Vladimir]

IE8 has very slow javascript engine therefore complex UI can be rendered slowly
I cannot say any thing concrete without your code inspection
Try to follow recommendations from the following post
http://forums.ext.net/showthread.php...ll=1#post66265