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From "Jonathan Kitchner" <>
Subject Remote EJB calls from Tomcat 5 to Weblogic 8.1 appear to be slower than from Weblogic 8.1 as a web server
Date Fri, 11 May 2007 19:39:22 GMT
I am migrating from WebLogic 8.1 as a web server to Tomcat 5.0.28. I
continue to use WebLogic as my EJB container. My application functions
fully in both environments. However I am seeing the following:

            Under Tomcat the EJB calls are much slower ( I know that
Tomcat does not perform the actual call - we are using the thin client
from WebLogic).

            As the size of the result set from the EJB call increases
the degradation in performance increases.

            The CPU usage and Load factor and user response time are all
considerably larger under Tomcat.


Does anyone know where this degradation in performance is coming from?

Has anyone who has done this migration experienced the same behavior? If
so how did you mitigate it?


If you need more detail, please ask me questions. I really do not know
what information to add to this question.


Jonathan Kitchner


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