tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From tootbatoot <azfar.zees...@gmail.com>
Subject RE: Tomcat 5.0.28 memory usage - garbage collection
Date Thu, 12 Jun 2008 14:43:00 GMT

Thanks. Sorry for not including the environment info - here it is:
OS: Windows server 2003 SP1
jdk1.4.2_12
I am checking the numbers from task manager console and not sure whether
these are virtual or real ones? how to find this, thanks.
t


Caldarale, Charles R wrote:
> 
>> From: tootbatoot [mailto:azfar.zeeshan@gmail.com]
>> Subject: Tomcat 5.0.28 memory usage - garbage collection
>>
>> When I put load on it via my webapp - I can see the memory
>> allocated to the process going up (in task manager) but
>> when I kill the session of the webapp (i.e. remove the load)
>> it does not come down. Should not the tomcat process release
>> memory when there is no load ?
> 
> In a word, no.  On most JVMs, once the virtual memory for the heap is
> allocated due to peak load, it stays allocated.  However, you didn't tell
> us if you're looking at real or virtual memory numbers; the real memory
> can fluctuate simply because the OS chooses to page some of it out.
> 
> You also didn't bother to tell us the JDK and OS you're using (likely some
> form of Windows), and your're running on an unsupported version of Tomcat.
> 
>  - Chuck
> 
> 
> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY
> 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 start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
> 
> 
> 

-- 
View this message in context: http://www.nabble.com/Tomcat-5.0.28-memory-usage---garbage-collection-tp17800619p17801715.html
Sent from the Tomcat - User mailing list archive at Nabble.com.


---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message