I would just make a thread dump and look which thread is hanging in a
infinite loop and causes the cpu usage.
regards
leon

p.s. to create a stack-trace -> kill -QUIT <tomcat_pid>

On 9/12/06, Michele Mazzucco <[EMAIL PROTECTED]> wrote:
Hi Atomi,

try to take a look to the following links
http://www.hyperic.com/
http://www.hyperic.com/products/sigar.html

Or, if you could use JMX: http://java.sun.com/products/JavaManagement/

Regards,
Michele

atomi wrote:
> I have a single servlet application and my server jumps up to 99+% cpu
> after
> only just a few users, i do 'service tomcat restart' and it drops to less
> than 5% cpu usage on a dual xeon server (shows up as 4 cpus in top).
>
> My question is: what tools are available to diognose the cpu load of the
> application?
>
> any response will be appreciated!
> atomi
>

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