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From "Haase, Johannes | SCARUS" <>
Subject Re: Profiling tomcat applications with -Xrunhprof (Tomcat runs asa Windows Service)
Date Wed, 01 Apr 2009 06:46:49 GMT

Caldarale, Charles R schrieb:
>> From: Caldarale, Charles R
>> Subject: RE: Profiling tomcat applications with -Xrunhprof (Tomcat runs
>> asa Windows Service)
>> What might work is using JVisualVM instead and just looking at the
>> information in the GUI.
> I did get JVisualVM to work with Tomcat running as a service, but I don't think you're
going to like it (to paraphrase Douglas Adams).
> First, the Tomcat service needs to be running under the same Windows account that JVisualVM
is started with; JVisualVM cannot find the PID otherwise, and heap profiling doesn't seem
to be available through JMX ports (or maybe I just don't know how to configure it).
> Second, you'll need to run Tomcat under JRE/JDK 1.6.  JVisualVM can access Tomcat running
under a 1.5 JRE, but heap profiling won't be available.
> So, the easiest thing may well be to just run Tomcat from the command prompt for the
duration of the profiling effort.  Since heap profiling has a significant performance impact,
you wouldn't want it on very long anyhow.
>  - Chuck

Hello Chuck!

Thanks for clarification.
How can I start the tomcat 5.5 that was installed and intended to run as 
a service via console?

Thanks a lot!

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