tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Josh Gooding <>
Subject Re: unable to set MaxPermSize past 128MB
Date Mon, 06 Feb 2012 05:40:58 GMT
well because this is for an 15K member organization, and that is a MAJOR
change.  I'm in charge of the web project, not the hardware, and as much as
I've fought that battle, the best I've gotten was virtualization still on a
32-bit OS.  I ordered 2 new 2K8 64b systems (still virtualized :: stroke
::) but they should take care of all the users.  If I had my way it'd be
different, but you know how corporate world is.  Just like the military....
hurry up and wait.  :)

I DID manage to get everything running mostly optimally.  Here's what I did:

in the environment variables I set JAVA_OPTS = -XX:MaxPermSize=256m
-Xms=256M -Xmx=1536M.  Now Tomcat runs FAST and with about 3000 users, it's
still blazing along using about 150MB on each of the 4 boxes.  Much better
than 500MB per box, with 1500 users.  If it needs more ram, I change the
variables and bounce the TC Server.  No biggie.

Thanks again Charles!

- Josh

On Sun, Feb 5, 2012 at 11:37 PM, Caldarale, Charles R <> wrote:

> > From: Josh Gooding []
> > Subject: Re: unable to set MaxPermSize past 128MB
> > your kidding me right?  Why is tweaking the JVM for this so hard?
> Why are you still running on ancient hardware and software?  Use a 64-bit
> OS and a 64-bit JVM and you don't have to be concerned with the inherent
> limits of 32-bit environments.
>  - Chuck
> MATERIAL and is thus for use only by the intended recipient. If you
> received this in error, please contact the sender and delete the e-mail and
> its attachments from all computers.
> ---------------------------------------------------------------------
> To unsubscribe, e-mail:
> For additional commands, e-mail:

  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message