Subject: RE: [xsl] Comparing grouping techniques in terms of performance From: Pieter Reint Siegers Kort <pieter.siegers@xxxxxxxxxxx> Date: Wed, 7 Apr 2004 11:06:13 -0500 |
OK Kevin, thanx for the pointer - looks good. After equalizing my stylesheets I found that the template approach was slightly faster, but I also saw that the times varied a lot from one transformation to another. The good thing is that the big difference in execution time was just caused by myself copying in a double <xsl:key> declaration - I still ask myself how did it come there :-) <prs/> http://www.pietsieg.com http://www.pietsieg.com/dotnetnuke Contributor on www.ASPToday.com Co-author on "Professional ASP.NET XML with C#", July 2002 by Wrox Press -----Original Message----- From: Kevin Jones [mailto:kjones@xxxxxxxxxxx] Sent: Wednesday, April 07, 2004 2:40 AM To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [xsl] Comparing grouping techniques in terms of performance On Tuesday 06 April 2004 22:39, Pieter Reint Siegers Kort wrote: > > I still would like to know if there are any sites that publish this > type of comparison - if not, I would be interested in setting up this > myself as part of my site. > Hi, There are unfortunately very few published performance guidelines. The best overview is probably in the FAQ at http://www.dpawson.co.uk/xsl/sect4/N9883.html. I think it is fairly well understood that all others things being equal using for-each will be quicker than template matching. The caveat is that the improvement is often so small as not to be important and template solutions are normally much cleaner. In this particular case (with simplified stylesheets) I measured a 4% difference for a file with 2000 entries in favour of using for-each. As the document size grows so does the difference. This was on the Sarvega processor, other processors may be different. Regards, Kev.
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