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Two other related URL's...
http://www.xsltblog.com/archives/2004/12/the_results_are.html that
contains Dimitre Novatchevs results to a challenge to the Meunchian
Method and http://www.xsltblog.com/archives/2005/01/idea_for_usage.html
which contains a much better explanation of the code base allthough
using it to brainstorm some other ideas the methods presented could be
used for...
On Mon, 28 Mar 2005 02:46:23 -0700, M. David Peterson
<m.david.x2x2x@gmail.com> wrote:
> Hey Mukul,
>
> As I have learned from creating similar tests and posting the results
> there are too many outside factors that go into these one off
> measurements to put any sort of weight on the result. If interested,
> after I discovered the details of how to properly pressure cook a
> processor I created a quick little test suite that takes any given
> piece of XML, creates a range of file sizes (dynamically specified in
> the config file) and combines this with a structured series of
> commandline sequences to properly put a processor to the test in sets
> of 1, 3, and 9 iterations through the same XML file, outputting the
> results into seperate files that can then be used to develop a much
> more qualified understanding of what your dealing with...
>
> I actually have several iterations of this original test-suite (it was
> a quick hack... its "grown-up" quite a bit since and I plan to release
> the new and improved version around the same time Saxon.NET goes from
> RC1 > RC2 > 1.0 Final in the next week or so) but for now if you want
> to play around with it you can access the file and a quick explanation
> of how it worls here >
> http://www.xsltblog.com/archives/2004/12/next_portion_of.html
>
> Have fun :D
>
> <M:D/>
>
>
> On Mon, 28 Mar 2005 01:25:35 -0800 (PST), Mukul Gandhi
> <mukul_gandhi@yahoo.com> wrote:
> > I did a small performance comparison between Xalan-J
> > 2.6.0 and Saxon 8.3 . I ran a simple identity
> > transform on a small XML file.
> >
> > The XSLT is -
> >
> > <?xml version="1.0"?>
> > <xsl:stylesheet
> > xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> > version="1.0">
> >
> > <xsl:output method="xml" indent="yes" />
> >
> > <xsl:template match="@* | node()">
> > <xsl:copy>
> > <xsl:apply-templates select="@* | node()" />
> > </xsl:copy>
> > </xsl:template>
> >
> > </xsl:stylesheet>
> >
> > Average execution time recorded were:
> > -------------------------------------
> > Xalan-J 2.6.0 :
> > with -DIAG option 220 ms
> >
> > Saxon 8.3 :
> > with -TP option 47 ms(Saxon's performance analysis
> > tool)
> > with -t option 63 ms
> >
> > It seems Saxon is faster than Xalan. It seems upto
> > about 4-5 times.. I am assuming both Xalan and Saxon
> > are measuring the same things!
> >
> > If "GNU JAXP XSLT processor" is 2.8 times faster than
> > Xalan , then Saxon is approximately 2 times faster
> > than GNU XSLT processor ..
> >
> > I read in an article by Michael Kay that Saxon uses an
> > efficient tree structure suited for XPath data model..
> > DOM and XPath tree models don't map 100%. But I am not
> > sure what Xalan uses.. I guess it is DOM or a slight
> > variant of it..
> >
> > Regards,
> > Mukul
> >
> > --- Chris Burdess <dog@bluezoo.org> wrote:
> > > Michael Kay wrote:
> > > >> What kind of parser is best to use for XSLT
> > > transformations ?
> > > >> SAX or DOM
> > > >
> > > > XSLT processors will in general build a tree
> > > representation of the
> > > > source
> > > > document in memory. And in general, many of them
> > > will build a tree
> > > > representation that is much more efficient than
> > > using a
> > > > general-purpose DOM.
> > > > So there's no point building an inefficient DOM
> > > tree rather than
> > > > letting the
> > > > XSLT processor build its own. But this advice may
> > > depend on the XSLT
> > > > processor you are using.
> > >
> > > For what it's worth, the GNU JAXP XSLT processor
> > > uses DOM internally
> > > for both source and result trees, and is about 2.8
> > > times as fast as
> > > Xalan on a wide range of transformations (the OASIS
> > > XSLT/XPath
> > > conformance suite). I don't have figures for memory
> > > usage or
> > > comparisons with Saxon though.
> > > --
> > > Chris Burdess
> > >
> > >
> > >
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>
> --
> <M:D/>
>
> :: M. David Peterson ::
> XML & XML Transformations, C#, .NET, and Functional Languages Specialist
>
--
<M:D/>
:: M. David Peterson ::
XML & XML Transformations, C#, .NET, and Functional Languages Specialist
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