[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Transforming large XML docs in small amounts of m
It depends very much on the nature of the transformation. Some transformations are amenable to the approach described at http://www.saxonica.com/documentation/sourcedocs/serial.html Some can benefit from inserting a SAX filter into the pipeline before the transformation proper, simply to remove the parts of the input document that aren't needed. Be aware also that there are considerable differences between different tree models in the amount of space they use. The Saxon TinyTree is generally 4-5 times raw data size whereas a DOM is often 10 times raw data size. Michael Kay http://www.saxonica.com/ > -----Original Message----- > From: Ronan Klyne [mailto:ronan.klyne@xxxxxxxxxxx] > Sent: 30 April 2007 10:19 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: Transforming large XML docs in small amounts of memory > > Hi all, > > I am trying to find ways of reducing the memory requirements > of our transforms. > The main factor driving the memory usage up is the size of > the input document (upto about 150Mb), but this is out of our > control at this point. > So, the question: Is there anything which can be done (or > avoided) in the XSL to decrease the amount of memory used in > the transform? > > (I appreciate that this question is very abstract, and I > apologise - I'm mostly fishing for ideas, or a confirmation > of my suspicion that not much can be done...) > > # r > > -- > Ronan Klyne > Business Collaborator Developer > Tel: +44 (0)870 163 2555 > ronan.klyne@xxxxxxxxxxx > www.groupbc.com
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