tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Shapira, Yoav" <Yoav.Shap...@mpi.com>
Subject RE: heap size
Date Wed, 23 Jul 2003 17:50:13 GMT

Howdy,

>I am a bit confused: I am running Tomcat 4.1.18 on Linux, with JDK
>1.4.1_03-b02.  Nowhere in the startup scripts do I see it specified how
>much memory to use (i.e., with the -Xmx flag).  When I call
>Runtime.totalMemory(), it gives me 128MB, yet I was under the
>impression that the JVM sets aside 64MB by default.

No -Xmx leaves it with the default for the VM.  All the -X's are
optional parameters.  I too thought 64MB was the default.

>On a possibly unrelated note, is it feasible to force garbage
>collection on Tomcat's JVM, either through Tomcat or the JVM itself?
>Googling has revealed only the official answer to this question, but
>I've heard that most profilers can do this.

No.

Profilers, and apps, can call System.gc(), which is a suggestion and
cannot force GC.  

Yoav Shapira



This e-mail, including any attachments, is a confidential business communication, and may
contain information that is confidential, proprietary and/or privileged.  This e-mail is intended
only for the individual(s) to whom it is addressed, and may not be saved, copied, printed,
disclosed or used by anyone else.  If you are not the(an) intended recipient, please immediately
delete this e-mail from your computer system and notify the sender.  Thank you.


---------------------------------------------------------------------
To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tomcat-user-help@jakarta.apache.org


Mime
View raw message