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From "Karr, David" <david.k...@wamu.net>
Subject RE: Performance issues
Date Sun, 18 Jan 2004 17:32:39 GMT
My point is, it would be good to make sure your measurements don't
include the initial generation and compile of the servlet.  This will
take quite a while, relatively, and will only happen once.  Depending on
how much continuous load you're providing, it may be less of a factor,
but you should be aware of that, in any case.

-----Original Message-----
From: Colin Chalmers [mailto:Colin.Chalmers@xs4all.nl] 
Sent: Saturday, January 17, 2004 5:17 AM
To: Tag Libraries Users List
Subject: Re: Performance issues


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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