maybe try to run it under another service manager, like the Java Service Wrapper
http://people.apache.org/~fhanik/wrapper.html

to rule out the case, that its a win service problem
Filip

Jason Polites wrote:
Hi all,

I am running Tomcat 5.5.23 on a Win32 platform as an NT Service, with the
native DLL.

I am experiencing the CPU spinning at 100% in our production environment,
which is not something I have seen in our dev or staging env. In order to determine the problem area, I have tried running Tomcat with hprof using the
following JVM option:

-Xrunhprof:cpu=samples,thread=y

I am setting this in the Java options tab of the Windows service dialog. I get a java.hprof.txt file created in the root tomcat directory, but there is
nothing in it other than the standard intro text.

This works when I run tomcat locally within eclipse (same tomcat version);
but when running in production I get no data!

This is really frustrating as I can't fix the CPU problem because I can't
identify it.

Help!

Thanks.

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