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From André Warnier ...@ice-sa.com>
Subject Re: Tomcat memory allocation
Date Fri, 09 Dec 2011 15:51:09 GMT
Martin O'Shea wrote:
> I should add that Tomcat is running as a Windows service, it isn't started
> manually.

Then the .bat files are not used.
Call up the tomcat?w.exe program, and edit the settings in the Java tab.

> 
> -----Original Message-----
> From: Caldarale, Charles R [mailto:Chuck.Caldarale@unisys.com] 
> Sent: 09 Dec 2011 15 29
> To: Tomcat Users List
> Subject: RE: Tomcat memory allocation
> 
>> From: Martin O'Shea [mailto:appy74@dsl.pipex.com]
>> Subject: RE: Tomcat memory allocation
> 
>> But if I change the settings in catalina.bat to:
> 
> Don't make changes to catalina.bat; create a setenv.bat to hold all your
> local settings.
> 
>> set CATALINA_OPTS=%CATALINA_OPTS% -Xms128m -Xmx768m 
>> -XX:MaxPermSize=128m
> 
>> In Tomcat Manager I see:
> 
> Use a real JVM analysis tool (e.g., JConsole, VisualVM), not the manager
> webapp.
> 
>> Free memory: 97.90 MB Total memory: 122.68 MB Max memory: 227.56 MB 
>> Shouldn't total or max memory have a higher reading?
> 
> No, since the heap size is sliding around between Xms and Xmx.
> 
> You might want to take a look at the papers here:
> 
> http://www.oracle.com/technetwork/java/javase/tech/index-jsp-140228.html
> 
> Especially interesting are the ergonomics and tuning ones.
> 
>  - Chuck
> 
> 
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