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From "Adam A R" <aa...@sybase.co.jp>
Subject Re: Reducing system resource usage by Tomcat/Cocoon
Date Thu, 15 Nov 2001 09:55:02 GMT
Hi Anthony,

I was wondering if it was only me whos having the problem.

My Problem:

I am using Cocoon1.8 with iAnywhere Wireless Server(from Sybase). For
simplicity I am using a simple XML file with a simple XSL stylesheet which
transforms the XML to HTML
Everything is OK until I request around 19 xml documents from Cocoon.(it
doesnt matter if i keep refreshing the same page.) But when I cross this
limit, the CPU usage never comes back to normal. It keeps varying between
44% - 85%. And if i keep requesting xml pages... it goes upto 100% never to
come back!!!  I have to restart the server.

Has anyone else run into such case??

Is there some solution/workaround to this? if its a problem with Cocoon.

cheers
Adam


----- Original Message -----
From: <aaldridg@csc.com>
To: <cocoon-users@xml.apache.org>
Sent: Wednesday, November 14, 2001 10:30 PM
Subject: Re: Reducing system resource usage by Tomcat/Cocoon


> Interesting - I've been running c2 on NT and UNIX - it seems much better
> behaved under UNIX - I still fail to understand the CPU usage when it's
> idle (100% if allowed on NT! and 2.6% on UNIX, but why, it's not doing
> anything).
>
> dunno the answer. Maybe should be posted to the 'dev' mail list.
>
> Regards,
>
> Anthony Aldridge
> Lead Application developer
>
> Managed Intranet Hosting
> CSC
> JPMorganChase
> Personal GDP: 325-8338
> MIH Hotline: 876-1300
>
>
>
>
>
> "Robert J. Lebowitz" <lebowitz@finaltouch.com> on 14/11/2001 02:40:56
>
> Please respond to cocoon-users@xml.apache.org
>
> To:   cocoon-users@xml.apache.org
> cc:
> Subject:  Reducing system resource usage by Tomcat/Cocoon
>
>
> I've been running Cocoon 2 for a few days now using Tomcat/Apache as a
> servlet container.  Frankly, I'm a bit stunned at what a memory hog the
> framework is.
>
> I've been trying to determine by what means I can reduce the amount of
> memory utilized, but thought I'd simply ask the group to see what items
> they
> think would be significant:
>
> 1.  Choice of VM:  I'm using Sun's jdk 1.3.1 under Linux.  Would the IBM
VM
> be a better choice?
> 2.  Configuration of Tomcat:  what aspects of Tomcat can be tuned to
reduce
> memory usage?  I've experimented  running Tomcat in standalone mode, and
> using the Warp connector.. what can I do to reduce resource usage?
> 3.  Eliminating unneeded jars, Generators, Transformers, etc.
> 4.  Cocoon configuration itself...
>
> Thanks.... I look forward to your remarks.
>
> Rob
>
>
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