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Posted to users@tomcat.apache.org by Karim Zaki <Ka...@itworx.com> on 2008/04/01 17:37:18 UTC

Tomcat performance over VMWare

Hi all,

I'm experiencing poor performance with Tomcat 5.0.28 running on a Windows 2000 Server VM (Windows Server 2003 R2 host, VMWare Server 1.0.4). Tomcat takes up around 50% of the CPU and the "System" process takes up the other 50% when making requests that return relatively quickly on a physical server. The VM has 2.5GB of RAM assigned to it, and the host is a quad processor machine.

Is anyone familiar with any known performance issues with Tomcat on VMWare? Any recommendations?

Regards,
Karim

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RE: Tomcat performance over VMWare

Posted by Karim Zaki <Ka...@itworx.com>.
Hi Gabe,

I allocated 2 processors to the VM.

Regards,
Karim


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Re: Tomcat performance over VMWare

Posted by Gabe Wong <ga...@ngasi.com>.
Karim Zaki wrote:
> Hi all,
>
> I'm experiencing poor performance with Tomcat 5.0.28 running on a Windows 2000 Server VM (Windows Server 2003 R2 host, VMWare Server 1.0.4). Tomcat takes up around 50% of the CPU and the "System" process takes up the other 50% when making requests that return relatively quickly on a physical server. The VM has 2.5GB of RAM assigned to it, and the host is a quad processor machine.
>
> Is anyone familiar with any known performance issues with Tomcat on VMWare? Any recommendations?
>
> Regards,
> Karim
>
>   
Karim,

How many processors were allocated to the VM (VMWare)?


-- 
Regards

Gabe Wong
NGASI AppServer Manager
JAVA AUTOMATION and SaaS Enablement
http://www.ngasi.com
NEW! 8.0 - Centrally manage multiple physical servers


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Set Tomcat logging timezone - switching summer time (daylight saving) automatically

Posted by Albert Yu <al...@selatra.com>.

I found that if you add 

-Duser.timezone=Europe/London

into JAVA_OPTS in catalina.sh, all tomcat logging will use BST at summer
time, but 

-Duser.timezone=BST 

does NOT work.


Hope this is useful for somebody.


Albert Yu
(Yizhuan Yu)


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