Re: [xsl] Finding paths in Visio XML exports - recursion question

[Steven Davies <xsl-list@xxxxxxxxxxx>]

Michael Kay wrote:
> > This basically does the same as the three loops but in one 
> > statement - however, it now takes a very long time to run - 
> > over a minute as opposed to about a second. This isn't a 
> > major issue as it won't be run very frequently but do you 
> > know why this performance hit might have happened?
>
> Questions about performance can only be answered with knowledge of a
> specific XSLT processor.
>
> I tried running your sample using Saxon 9.1. It ran in 125ms, but the output
> was more-or-less empty. 
>
> That's possibly because your stylesheet only processes shapes satisfying
> [v:Label='Shape Reference' and v:Value='1'], and that label doesn't appear
> in your source data. On the other hand, if I remove that predicate, it runs
> even faster and still produces no output.

Yeah, the stylesheet I uploaded is the one I'm actually using whereas 
the Visio file is just a mockup which doesn't have the right properties 
and suchlike.

I just timed it again using Saxon this time and it runs over my actual 
data in just under 25 seconds so it looks like it's an issue with 
libxslt. I'm actually using Apache fop now to generate a PDF which is 
even slower (1m 25 ish) so it's definitely implementation dependent! 
Saxon is remarkably quick for a Java app ;-)

Steve