How to show java heap space

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s.scholte@thies-it.de - 30 Jun 2008 16:06 GMT

Hello,

I'm a java newbie and i've got a little question.
how do i show java heap space on console?

SLES 9
Java 1.4.2

regards

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Thomas Schodt - 30 Jun 2008 16:45 GMT

> Hello,
>
[quoted text clipped - 3 lines]
> SLES 9
> Java 1.4.2

Your question is vague.

Maybe one of the following is what you are after.

-XX:+PrintCommandLineFlags

-XX:+PrintGC
-XX:+PrintGCDetails

http://java.sun.com/performance/jvmstat/

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Alex.From.Ohio.Java@gmail.com - 30 Jun 2008 18:30 GMT

On Jun 30, 11:06 am, s.scho...@thies-it.de wrote:

> Hello,
>
[quoted text clipped - 5 lines]
>
> regards

Use JConsole.
Run your program with switch -Dcom.sun.management.jmxremote
and then run JConsole from you java/bin directory and enjoy results.
You can see not only heap but almost everything else and it doesn't
interrupt your console interaction.

Alex.
http://www.myjavaserver.com/~alexfromohio/

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Roedy Green - 30 Jun 2008 19:13 GMT

>I'm a java newbie and i've got a little question.
>how do i show java heap space on console?

see http://mindprod.com/jgloss/garbagecollection.html for the methods
to measure free ram.

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Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com

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