1. #1
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    Default Performance

    Performance


    Hi Darrell,

    I've been looking around and comparing ext-js vs. ext-gwt. I really like the look of ext-js and happy to see ext-gwt will have the same look, css properties (right?) and things like that. I think this is a plus. But I have to admit, one thing that I do notice is that ext-js is substantial faster (atleast on firefox). There is definitely a noticable delay when clicking on some of the demo pages (tables, etc.). I'm curious if this is a issue with gwt itself or in ext-gwt and if the latter, if this is something you are working on and when we might expect to see the same performance as we are seeing from ext-js.

    Thanks, I wish you my best and look forward to the dust settling for you from this transition.

    Chris

  2. #2
    Ext JS Premium Member brasmouk's Avatar
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    Default performance problems

    performance problems


    Hello and sorry in advance for my English,

    I started with Ext now and I would like to know if you have experienced performance problems for display and refreshments components.

    Example using a GridPanel which contains more than 1000 records, and I think the loading time is very long.

    I also found problems with encoding using Aptana and FireFox.

    What are the best way to use Ext in a page that contains so many components?

    What are good ways to load data?

    Thinks for you return experience if you have experienced the same problems and how you've solved.

  3. #3
    Sencha Premium Member
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    Default


    +1

    why gxt is much slower than extjs wrapper ?

  4. #4
    Sencha - GXT Dev Team darrellmeyer's Avatar
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    Default


    The performance of Ext GWT is something that is currently being addressed and is high priority. We are currently working on several performance optimizations. Some of these changes will be included in beta2.

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    Default


    btw, it's probably worth gzipping the explorer demo for ext GWT on extjs.com (yslow output is below):

    These components are not gzipped:
    • (1.4K) http://extjs.com/explorer/#overview
    • ParamsHeadersPost
      Response Headers

      Date:
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      Server:
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      Etag:
      W/"1482-1208751110000"
      Last-Modified:
      Mon, 21 Apr 2008 04:11:50 GMT
      Content-Length:
      1482
      Connection:
      close
      Content-Type:
      text/html; charset=UTF-8

      Loading...
    • (573.7K) http://extjs.com/explorer/97E494DAE0...49B.cache.html
    • ParamsHeadersPost
      Response Headers

      Date:
      Wed, 23 Apr 2008 23:03:13 GMT
      Server:
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      Etag:
      W/"573779-1208751110000"
      Last-Modified:
      Mon, 21 Apr 2008 04:11:50 GMT
      Content-Length:
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      Content-Type:
      text/html; charset=UTF-8

      Loading...
    • (4.8K) http://extjs.com/explorer/com.extjs....rer.nocache.js
    • ParamsHeadersPost
      Response Headers

      Date:
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      Server:
      Apache/2.2.3 (Red Hat)
      Etag:
      W/"4831-1208751110000"
      Last-Modified:
      Mon, 21 Apr 2008 04:11:50 GMT
      Content-Length:
      4831
      Content-Type:
      text/javascript

      Loading...
    • (77.4K) http://extjs.com/explorer/css/ext-all.css
    • ParamsHeadersPost
      Response Headers

      Date:
      Wed, 23 Apr 2008 23:03:11 GMT
      Server:
      Apache/2.2.3 (Red Hat)
      Etag:
      W/"77448-1208751110000"
      Last-Modified:
      Mon, 21 Apr 2008 04:11:50 GMT
      Content-Length:
      77448
      Content-Type:
      text/css

      Loading...
    • (22.3K) http://extjs.com/explorer/css/gxt-all.css
    • ParamsHeadersPost
      Response Headers

      Date:
      Wed, 23 Apr 2008 23:03:12 GMT
      Server:
      Apache/2.2.3 (Red Hat)
      Etag:
      W/"22357-1208751110000"
      Last-Modified:
      Mon, 21 Apr 2008 04:11:50 GMT
      Content-Length:
      22357
      Content-Type:
      text/css

      Loading...
    • (1.4K) http://extjs.com/explorer/
    • ParamsHeadersPost
      Response Headers

      Date:
      Wed, 23 Apr 2008 23:03:11 GMT
      Server:
      Apache/2.2.3 (Red Hat)
      Etag:
      W/"1482-1208751110000"
      Last-Modified:
      Mon, 21 Apr 2008 04:11:50 GMT
      Content-Length:
      1482
      Content-Type:
      text/html; charset=UTF-8

      Loading...
    • (5.3K) http://extjs.com/explorer/Resources.css
    • ParamsHeadersPost
      Response Headers

      Date:
      Wed, 23 Apr 2008 23:03:13 GMT
      Server:
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      Last-Modified:
      Mon, 21 Apr 2008 04:11:50 GMT
      Content-Length:
      5300
      Content-Type:
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      Loading...
    • (9.6K) http://extjs.com/explorer/css/xtheme-gray.css

  6. #6
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    Default


    Quote Originally Posted by darrellmeyer View Post
    The performance of Ext GWT is something that is currently being addressed and is high priority. We are currently working on several performance optimizations. Some of these changes will be included in beta2.
    Sorry if this was already answered. When is beta2 expected to be available?

  7. #7
    Sencha - GXT Dev Team darrellmeyer's Avatar
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    Beta2 should be out by Monday.