Subject: RE: [xsl] Transforming large XML docs in small amounts of memory From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Mon, 30 Apr 2007 12:48:19 +0100 |
> It's purely XSLT 1.0, using Saxon (on Linux and Windows, if > that matters...), although suggestions to change this would > not be shunned. Just as an experiment, try it on Saxon 8.x rather than Saxon 6.5. It doesn't always make any difference, but on some occasions I've seen it make a dramatic improvement. > I think that transforming 150Mb of data in 400Mb > of RAM would be a sensible target (is this sensible?) That's ambitious. To achieve that, you're going to have to do something that condenses the input document before transformation. > I'm not sure how to tell what proportion of the memory is > used for the input DOM, output DOM, etc... If you really mean "DOM", then start by not using a DOM, and using a Saxon TinyTree instead. (Saxon doesn't use any memory for the final result tree - it's normally piped straight into the serializer). Michael Kay http://www.saxonica.com/
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