Subject: Re: [xsl] XSL Transformation overhead From: "M. David Peterson" <m.david.x2x2x@xxxxxxxxx> Date: Thu, 13 Jan 2005 02:54:41 -0700 |
Actuallly Michael, per your advice I built it such that you can add as many elements as you want and whatever command line switches you desire. The XML Config file to do this looks like: [btw... my apologies, I thought you were aware that I had built this after taking your advice from a few weeks ago]: <?xml version="1.0"?> <output> <files> <source href="test-group.xml"/> </files> <defaults> <processor id="saxon" call="Saxon8.jar">Saxon 8.1.1 form Saxonica</processor> <platform id="java" call="java">Java 1.4.2_4 from Sun Micrososystems</platform> <command-line id="cmdln" default-switch="-"> <switch call-id="java" no-switch="true"/> <switch value="ms" multiple-of="1024" use="512m">Sets the minimum heap size for the Java VM</switch> <switch value="mx" multiple-of="1024" use="512m">Sets the maximum heap size for the Java VM</switch> <switch value="jar">Tells the Java VM to use the Java Archive option</switch> <switch call-id="saxon" no-switch="true"/> </command-line> </defaults> <sequence> <node call-id="cmdln" /> <node>t</node> <node>o</node> <node>in-xml</node> <node>in-xsl</node> <node>capture-t</node> </sequence> <sequence> <node call-id="cmdln" /> <node>t</node> <node>3</node> <node>o</node> <node>in-xml</node> <node>in-xsl</node> <node>capture-t</node> </sequence> <sequence> <node call-id="cmdln" /> <node>t</node> <node>9</node> <node>o</node> <node>in-xml</node> <node>in-xsl</node> <node>capture-t</node> </sequence> </output> An example of a .bat file this creates looks like: java -ms512m -mx512m -jar Saxon8.jar -t -9 -o o-1000.xml 1000.xml test-group-m.xsl 2>execution-results\o-1000.xml-m-3.txt And the output info after all nine times through the 1000 element node-set from this looks like: Saxon 8.1.1 from Saxonica Java version 1.5.0 Stylesheet compilation time: 422 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 78 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 609 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 31 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 391 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 0 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 328 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 15 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 359 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 0 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 328 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 0 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 375 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 0 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 344 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 16 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 453 milliseconds Processing file:/C:/test/output/1000.xml Building tree for file:/C:/test/output/1000.xml using class net.sf.saxon.tinytree.TinyBuilder Tree built in 16 milliseconds Tree size: 1001 nodes, 0 characters, 1998 attributes Execution time: 547 milliseconds On Thu, 13 Jan 2005 09:44:33 -0000, Michael Kay <mike@xxxxxxxxxxxx> wrote: > > you can access a test suite I developed that will help create an array > > of various transformation scenarios that builds a .bat file for each > > test as well as a master bat files that calls each test one after > > another until complete. > > I don't think that performance figures obtained from the command line are > representative, certainly for anything under a second. They are too heavily > distorted by Java start-up costs. It's much better to use a Java driver > application that runs each transformation multiple times, ideally ignoring > outlier results. > > Michael Kay > http://www.saxonica.com/ > > -- <M:D/> :: M. David Peterson :: XML & XML Transformations, C#, .NET, and Functional Languages Specialist
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