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From "Billy Ng" <>
Subject Re: Memory issue with Tomcat/4.0.3
Date Wed, 12 Feb 2003 17:56:34 GMT
Are you using Windows?  It does not guarantee that the memory will release
to the OS until the OS needs it.  If you running a very big memory intensive
process, you will see Tomcat releases the memory in the Task Manager.  I
highly recommend you to set the max and min heap sizes with the same number.

Billy Ng

----- Original Message -----
From: <>
Sent: Wednesday, February 12, 2003 9:37 AM
Subject: Memory issue with Tomcat/4.0.3

> Hi all,
> I am experiencing some memory trouble when the
> tomcat server is running. I have set the the
> following java runtime options, -Xmx500m -Xms100m -Xingcg.
> I know that these values are not the best to use.
> Anyways, I'm keeping track of the freeMemory with the servlet
> programs and its always reporting ~ 80-70 MB out of the inital 100, which
is fine.
> My problem is when "top" or "free" report the amount of used memory.
> It keeps growing and growing. It seems to me that the free memory from
> the tomcat threads is not being released to the system.
> Is this a correct assumption?
> Can someone shed some light here, I'm all out of ideas!!!
> Thanks
> Alain
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