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From Evgeny Gesin <evgenyge...@yahoo.com>
Subject Re: Performance issues
Date Sun, 18 Jan 2004 13:34:15 GMT
We actually use JSTL to support multiple locales and
languages, so each web page calls its i18n taglib as
many times as the number of text labels, currencies,
dates, and other elements on the screen. JSTL
slowdowns web server, we monitor an average 3-10% CPU
comparing to 0,3-1% without JSTL (in the same
application). I think overload of JSTL can reduce by
2-3 times the number of web application on a dedicated
server to run at resonable performance.

Evgeny Gesin
Javadesk CEO / Founder

--- Colin Chalmers <Colin.Chalmers@xs4all.nl> wrote:
> Karr, David wrote:
> 
> >Just in case, are you doing your measurements AFTER
> the first
> >generation/compile of the servlet? It's not
> meaningful to measure taglib
> >performance before then.
> >
> Measurements are taking place during a continuous
> load of approx 60 users.
> 
> >
> >With respect to "caching" evaluation results, it's
> probably not worth
> >it, as it would have to do most of the evaluation
> before it could
> >determine that nothing has changed, causing a cache
> read.
> >
> 
> OK, thx for the reply
> 
> Colin
> 
> >
> >-----Original Message-----
> >From: Colin Chalmers
> [mailto:Colin.Chalmers@xs4all.nl] 
> >
> >Hi all,
> >
> >We've just started implementing TagLibs in our App
> and are seeing a 
> >couple of performance issues which I'd like to
> check with the group.
> >
> >We make heavy use of theExpressionEvaluationManger,
> is there any way to 
> >tweak this so that it pools/caches results?
> >
> >We also make a lot of use of the
> choose/when/otherwise
> >
> >Can this be a potential bottleneck compared to
> using a simple "if"
> >loop?
> >
> >Thx
> >
> >Colin
> >
> >
>
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> >  
> >
> 
> 
> 
>
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