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https://issues.apache.org/jira/browse/TAP5-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12656942#action_12656942
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Christian Gorbach commented on TAP5-417:
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Some thoughts about render performance, my oberservations:
There is a significant difference how Jsp/PHPet al. render pages: the output 
response can be flushed during the render phase. And because of the 
intermediate flushing a Jsp page might "feel" faster than a T5 render page - 
which is served and streamed after the complete dom was constructed and 
processed.
@see also http://developer.yahoo.com/performance/rules.html - flush the buffer 
early
I'm not sure if T5 can address early flushing because of different render 
approaches.






> Tapestry 5.0 Performance Improvements
> -------------------------------------
>
>                 Key: TAP5-417
>                 URL: https://issues.apache.org/jira/browse/TAP5-417
>             Project: Tapestry 5
>          Issue Type: Improvement
>    Affects Versions: 5.0.18
>            Reporter: Howard M. Lewis Ship
>            Assignee: Howard M. Lewis Ship
>
> Make it work. Make it right. Now we're making it fast.
> T5 is as fast or faster than JSP for trivial pages; for pages that render a 
> lot (i.e., lots of loops) T5 is not keeping up. It may not (it does so  much 
> more) but we need to narrow the gap.

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