Subject: [xsl] Latest XSLTMark benchmark From: "Michael Kay" <mhkay@xxxxxxxxxxxx> Date: Fri, 30 Mar 2001 16:52:22 +0100 |
A new set of results for the XSLTMark benchmark has been published at http://www.datapower.com/XSLTMark/res_2001_03_28.html#ChartOverall The benchmarking methodology is to compile the stylesheet, and then run it a large number of times over the same source document, averaging the results. I have taken a look at some of the drivers for different XSLT processors. As far as I can see the drivers for Oracle, MSXML, and Sun XSLTC parse and load the source document once, and then transform it many times from the same in-memory tree, while the drivers for xt, Saxon, and Xalan parse the source document and build the tree each time round the loop. Since parsing and building the tree account for a significant proportion of the transformation time, this would significantly skew the results. Are my suspicions correct? (Even if this is corrected, the methodology is flawed, because a processor could legitimately cache the results of parsing the document in memory, unknown to the driver. Ideally the source file should be trivially modified between each iteration to prevent this). Michael Kay Software AG XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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