Subject: Re: [xsl] Xslt Grouping From: "J.Pietschmann" <j3322ptm@xxxxxxxx> Date: Sun, 18 May 2003 21:08:01 +0200 |
I'm using the Muenchian Method to grouping my XML file. But I have a big problem: my XML file contains cca. 6000 nodes, so the transformation can be very slowly. How can I make it faster?
It depends on a lot of things - the XSLT processor you are using - the hardware you run on - your definition of "slow" and "not slow" (aka "fast") - your options on changing any of the above - your input - the actual code you use - whether the slow performance is really caused by grouping and not by the sheer size of the input or other things
suggestions - use a faster machine - check whether your grouping code uses keys (it should) - get a profiler and establish beyond doubt that it's the grouping which slows down you transformation - use another XSLT processor - use an XSLT processor written in C, like libxslt or msxml - check whether your XSLT processor has known performance problems with functionality which is important for grouping, in particular with the generate-id() function - tune your environment, in particular the JVM if you have to use a java based XSLT processor - change your input XML so that it is already grouped
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