Success! Looks like we've fixed this one. According to our records the fix was applied for EXTJS-3283 in 4.1.0 Sprint 1.
  1. #51
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    Quote Originally Posted by vlads View Post
    It looks like speed issues will be addressed in 4.1. Any idea when this is going to be released?
    Looking at around 3 weeks before beta (but don't quote me on that - software is hard)
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    Default 4.0.7?

    4.0.7?


    Will there be a 4.0.7 or is the new release 4.1?

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    Quote Originally Posted by peet View Post
    Will there be a 4.0.7 or is the new release 4.1?
    There will be both
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    Quote Originally Posted by edspencer View Post
    Looking at around 3 weeks before beta (but don't quote me on that - software is hard)
    Hi Ed,

    any news for the 4.1 release?

    I'm currently using 4.0.7 and I can confirm that the tab switching time is still very slow if the tab content is complex. It doesn't matter which browser is used. I tried it with FF8, IE9, Chrome 15...

    I tried it with the portal example and put that content in one tab. The content of the other tabs were only simple html content. The switiching time to or away from the "portal-tab" is very slow. The switching time between the simple html tabs is fast. This confirms what you said above.

    It is almost December now... When can we expect the 4.1 release? Please...

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    I forgot to mention that the switching time became extremly faster after closing some of the "portlets" on the "portal"-tab.

    Again, this confirms the problem with many individual components on one tab.

    I would really appreciate a feedback on the release date of 4.1

    Thanks

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    Default ditto

    ditto


    We reduced tab switching time by dropping the portal layout and developing a dnd eclipse-style layout that was faster. Also we reduced columns in grids which helped a lot.

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    Default Still not resolved in 4.1.0

    Still not resolved in 4.1.0


    I updated my test to 4.1.0 and compared it to 3.4.0 running in IE8. V4 is still very much slower.

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    Any updates on this? Switching tabs in windowed tabpanel is painfully slow in IE8 with 4.1.0

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    There is some discussion on this toward the end of the IE8 performance thread: http://www.sencha.com/forum/showthread.php?131618

    I have also updated my hosted copy of blakel's test code from the first post for Ext 4.1.0:
    For comparison, the old Ext 3 copies:

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    @drogers

    Not sure exactly why it happens or how much of a difference it makes, but the thing I noticed right away with your examples was that nearly every tab click on the 4.1 tabs resulted in two extra image requests:

    GET /dev/lib/extjs-4.1.0/resources/themes/images/default/tab/tab-default-top-active-corners.gif HTTP/1.1
    GET /dev/lib/extjs-4.1.0/resources/themes/images/default/tab/tab-default-top-active-sides.gif HTTP/1.1

    These didn't occur with the 3.4 examples. They resulted in 304, but are still extra HTTP requests.. could they make the tabs seem less responsive I wonder?

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