[jdom-interest] JDOM Document size

Matthew MacKenzie matt at xmlglobal.com
Thu Feb 8 19:59:35 PST 2001

Yeah, as I said ... really rough :-)  If you are happy with a "general idea"
measurement, this is one way among many.  


<<| message from: Jason Hunter <jhunter at collab.net> |>>
Matthew MacKenzie wrote:
> > 
> > It might be possible to guage the size of a DOM rather unscientifically
> > first running the program with a very simple xml file, such as <doc />,
> > recording the
> > memory footprint, then running a more complex document with a wide
> > of components
> > (attributes, elements, cdata, etceteras) and also recording its process
> > size.  Subtract a from b and
> > you should have a really rough estimate.
> That approach suffers from the problem that all temporary objects
> created during the build will be represented despite the fact they're
> not in the document.  You might try a System.gc() but we've found here
> before that it doesn't really do a full gc, if it does a gc at all. 
> (Testing on JDK 1.2.2 Windows shows System.gc() does nothing.)
> -jh-
<<| end message from Jason Hunter <jhunter at collab.net> |>>

Matthew MacKenzie
VP Research & Development, Founder
XML Global Technologies, Inc.

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