Performance

[cdgokey]

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

[brasmouk]

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.

[nseb]

+1

why gxt is much slower than extjs wrapper ?

[darrellmeyer]

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.

[sheesh-kebab]

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

These components are not gzipped:

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  Loading...
  
• (573.7K) http://extjs.com/explorer/97E494DAE0...49B.cache.html
• ParamsHeadersPost
  Response Headers
  
  Date:
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  Server:
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  Loading...
  
• (4.8K) http://extjs.com/explorer/com.extjs....rer.nocache.js
• ParamsHeadersPost
  Response Headers
  
  Date:
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  Server:
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  Content-Length:
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  Loading...
  
• (77.4K) http://extjs.com/explorer/css/ext-all.css
• ParamsHeadersPost
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  Date:
  Wed, 23 Apr 2008 23:03:11 GMT
  Server:
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  Content-Length:
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  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
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  Content-Length:
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  Content-Type:
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  Loading...
  
• (9.6K) http://extjs.com/explorer/css/xtheme-gray.css

[avrecko]

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?

[darrellmeyer]

Beta2 should be out by Monday.