Subject: Re: [xsl] XPath "//", speed, and Saxon From: Tony Graham <Tony.Graham@xxxxxxxxxxxxxxxxxxxxxx> Date: Mon, 03 Nov 2008 11:50:12 +0000 |
On Fri, Oct 31 2008 14:27:48 +0000, huttarl@xxxxxxxxx wrote: ... > Obviously the performance problem was elsewhere. But the question I > wanted to ask here is, what does this imply regarding good practices for > writing efficient stylesheets? The truism is that if you are worried about efficiency, you need to test using the processor that you are going to use in production and using something like the real data. This example from my tutorial about testing XSLT [1] shows the result of profiling the same stylesheet and data in both xsltproc and Saxon: the two XSLT processors agreed on which were the two most time-intensive templates, but after that, their results differed. And in this instance, using the Saxon timing switch and profiling stylesheet as shown in the tutorial (and in the Saxon documentation [2]) will help you identify your hotspots. Regards, Tony Graham Tony.Graham@xxxxxxxxxxxxxxxxxxxxxx Director W3C XSL FO SG Invited Expert Menteith Consulting Ltd XML, XSL and XSLT consulting, programming and training Registered Office: 13 Kelly's Bay Beach, Skerries, Co. Dublin, Ireland Registered in Ireland - No. 428599 http://www.menteithconsulting.com -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- xmlroff XSL Formatter http://xmlroff.org xslide Emacs mode http://www.menteith.com/wiki/xslide Unicode: A Primer urn:isbn:0-7645-4625-2 [1] http://www.menteithconsulting.com/wiki/XTech2007/MyStylesheetRunsBut#xsltproc [2] http://www.saxonica.com/documentation/using-xsl/performanceanalysis.html
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