You could use a profiling tool. I have used 
OptimizeIt (http://www.optimizeit.com). I have 
also heard good things about JProbe 
(http://www.klgroup.com). Alternatively, you 
could try to use the -Xprof or -Xrunhprof
invocation options of the 'java' command
and analyze the output using another tool
(e.g. Micro$oft Excel).

Good luck!

Lutz Lennemann

> -----Original Message-----
> From: Rickard �berg [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, June 14, 2000 11:31 AM
> To: jBoss Developer
> Subject: [jBoss-Dev] jBoss performance troubles
> 
> 
> Hey
> 
> Fixing jBoss architecture (touching up mostly) and ran into some
> performance issues. If I call a method that takes or return 
> an EJBObject
> it is superslow. It is vastly improved by removing the 
> security manager
> but it still takes about 15 ms/call. Plain call with 
> primitive arguments
> is about 2ms/call.
> 
> I'm trying to locate the problem, but it's not easy. Does 
> anyone know of
> any good tools to check bottlenecks in a system?
> 
> Thanks,
>   Rickard
> 
> -- 
> Rickard �berg
> 
> @home: +46 13 177937
> Email: [EMAIL PROTECTED]
> http://www.telkel.com
> http://www.jboss.org
> http://www.dreambean.com
> 

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