The link fot the paper is http://java.sun.com/docs/hotspot/gc/
The reason I posted here is because my app, which is a J2EE/Struts/Weblogic
app, is having a outOfMemoryError.   There are a few things I am suspecting,
one of the causes may be the 'size' of my Struts formBean or the size of my
stateful EJB.  Another cause may be the number of JSP and classes I have
exceeded the Permanent Generation. I have reviewed some of the previous
postings in this forum talk about those things.  That prompted me to  review
the above article and came up with the questions.   I am sorry if this is
not the right place for this posting.  Is there a GC forum that I can post
my question?

-----Original Message-----
From: Robert Taylor [mailto:[EMAIL PROTECTED] 
Sent: Saturday, September 20, 2003 5:54 AM
To: Struts Users Mailing List
Subject: [OT] RE: Garbage Collection


Where is this paper? Can you provide a link?

A problem similar to this was discussed
earlier this week.

Since you do not make it clear that you are
using Struts or even a web application, please prepend your posts with [OT]
next time.

robert


> -----Original Message-----
> From: Au-Yeung, Stella H [mailto:[EMAIL PROTECTED]
> Sent: Friday, September 19, 2003 4:58 PM
> To: 'Struts Users Mailing List'
> Subject: Garbage Collection
>
>
> A few question on Garbage Collection.  I read the paper on "Tuning 
> Garbage Collection".  Can someone tell me:
> 1) What's the default size of 'Permanent Generation'.
> 2) How to print out the available memory in 'Permanent Gereration'?  
> My 'OutOfMemoryError' may be due to this space is fulled.
> 3) The paper talkes about 'Promptness' (which is the time between when 
> an object becomes dead and when the memory becomes available).  Is there a
> default of this time.  Can I print out what's the setting is.   I also
> suspend that my 'OutOfMemoryError' is due to memory from dead objecs 
> are not released soon enough.
> 4) If I use 'NewRatio' to set the ratio between young and old generation,
> why do I need  'NewSize' and 'MaxNewSize'  since the latter too
> are to bound
> the young generation size.  Doesn't that 'NewRatio' already
> setting the size
> of the young generation with respect to the old generation and the total
> heap size?
>
> Any help will be appreciated.
>
> Stella
>
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