Would those of you who are much better versed in these things please
reply to the outstanding portions of Hans Kappert's letter, most of
which is included below. I have already advised him to subscribe to
fop-user and I have apologised for my delay in replying.
-------- (part of) Original Message --------
Subject: RE: Fop ALT-Design
Date: Thu, 30 Jan 2003 10:00:41 +0100
From: Hans Kappert <[EMAIL PROTECTED]>
To: 'Peter B. West' <[EMAIL PROTECTED]>
Thank you for your quick reply. Of course, you may CC your reply to
fop-dev. Will they mail me or do I have to monitor a mailing list?
I will evaluate release 0.20.5.
> From: Peter B. West [mailto:[EMAIL PROTECTED]
> I would like to CC this reply to fop-dev, with a follow-up there,
> because the questions you ask will be much better answered by
> others on
> the list. It's true that I have been working in memory consumption
> problems, but they are only in the front-end of the processing; the
> generation of the FO tree.
> I am pleased to say that the other developers are now interested in
> integrating my work into the mainline redesign effort (provided I get
> the necessary notes together.) Because of the areas in which I have
> been working, I am not as familiar with the details of performance of
> the existing system as many others, which is why I would like to pass
> your queries on.
> This re-integration will have benefits for the next
> generation of FOP,
> but notable improvements have already been made, and I
> suggest that you
> evaluate the release candidate(s) and final release of 0.20.5.
> Please let me know if it is OK to post your message with this
> reply to
> Hans Kappert wrote:
> > Dear Peter,
> > We are very glad to see that you are busy with improving
> FOP 's memory
> > consumption and size-independency.
> > We now use fop-0.20.4 and see memory consumption upto 80Mb for
> > converting a 800Kb XML file to a .pdf file (no forward
> references used).
> > It also took 15 -20 seconds on a 2Ghz pentium 4 with 256Mb RAM.
> > We would like to use fop for reporting/printing purposes in an
> > application we developed. This application will need to
> print invoices
> > in xml format leading to thousands of pages of PDF. What is
> your advice
> > on the folling issues?
> > - Is it a good idea to split the XML file into smaller bits
> and issue
> > multiple FOP requests?
> > - If so, how big is a good maximum for a server with 1GB
> internal memory.
> > - When the FOP handles two requests simultaneously (using
> two threads),
> > does the JVM need two times as much memory with the -Xmx
> option (See
> > http://xml.apache.org/fop/faq.html#faq-N10117)?
> > - If so, can we prevent the servlet runner (Tomcat) from
> starting more
> > threads when requests keep coming in?
> > - Is it a better idea to wait for ALT-Design to become stable?
> > - If so, do you have an indication when? Or, if hard to tell, what
> > year ;-)
> > Any response would be of great help..
Peter B. West [EMAIL PROTECTED] http://www.powerup.com.au/~pbwest/
"Lord, to whom shall we go?"
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