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From Celso Magalhães Dantas Neto <>
Subject Re: Tomcat memory requirements
Date Wed, 25 Jan 2012 18:19:03 GMT
Thanks everyone for the reply!

My problem is not to argue how the application is consuming RAM, but to
show that 150MB is not too much memory. But for that I'd like to use
trusted information such as an article, or official info. The client
doesn't understand anything about technologies but has opened the Windows
Task Manager and saw that Tomcat is on top 3 in memory consumption. I just
need to argue with him that 150MB is normal for a Java web app.

I know that "normal" really depends on how your/my application has been
developed but I was just wondering if I could find information about memory
consumption of a small 1 CRUD application (for example).

And yes I could start Tomcat with no app, and create a 1 CRUD application,
but I would prefer to argue with some trusted article or official

Ah! BTW, I'm not complaining about Java or Tomcat memory consumption! I'm
just trying to argue with the client. =D
And I'm running Tomcat 6 and Java 1.6

thanks, again!


*Pesquisa & Inovação
+ 55 71 2101.4104  |  skype: celsomdantas*
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On Wed, Jan 25, 2012 at 3:45 PM, André Warnier <> wrote:

> Pid * wrote:
> ...
>> And of this, a Tomcat instance with just the ROOT application can be
>> observed to consume from ~6Mb to ~10Mb of RAM in the object heap with
>> a nice stable sawtooth on most systems.
>>  Not that I want to cast doubt upon your measurements, but somehow that
> seems hard to believe.  This is without any requests being processed,
> surely ?
> A standard out-of-the-box tomcat-7 on my Windows XP 32-bit laptop, started
> from the command window with startup.bat, shows 40 MB in Task Manager,
> without any requests being processed. Granted, that probably includes the
> demo apps, but still.
> It goes to 50 MB as soon as I call up the home page.
> Ah, OK, you were just talking about the heap..
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