Am 23.03.2015 um 10:02 schrieb André Warnier:
Rahul Kumar Singh wrote:
Dear Thomas,
Thanks for your quick response,
Tomcat doesn't use anything like that much memory on its own. I
suspect it is the application although the difference between Tomcat
6 and Tomcat 7 is unexpected.
Ok, I understand,
But could you please confirm us theoretically that is there any
difference in initial memory requirement of tomcat6 and tomcat 7?
That should be much easier and quicker to check this by yourself, as you
obviously already have the 2 Tomcat versions up and running.
Remove your own application, deploy one of the standard Tomcat-examples
applications, and have a look.
If there is still a big difference between v6 and v7, then come back
here. At least then there will be a reproducible test case for someone
here to have a closer look.
And if there is not a big difference, then obviously it must have
something to with your application. And then, follow Mark's
already-given advice to find out what.
In addition: run a Garbage Collection before doing the measurement, so
you only measure live objects, not garbage. As you didn't tel us how you
did your measurement, we can't know.
Regards,
Rainer
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