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> -----Original Message-----
> From: Dennis Sosnoski [mailto:dms@sosnoski.com]
> Sent: Friday, April 16, 2004 17:25
> To: bob@wyman.us
> Cc: 'Elliotte Rusty Harold'; 'XML DEV'
> Subject: Re: [xml-dev] Fast text output from SAX?
>
>
> Bob Wyman wrote:
>
> >Dennis Sosnoski wrote:
> >
> >
> >>I'm curious what benchmarks were presented at the
> >>Binary workshop in support of this point.
> >>
> >>
> > Read the OSS Nokalva submission.[1] The section that
> talks about
> >encodings of the Infoset is most relevant to an XBis comparison.
> >Note: The XML documents used to do the tests were the ones
> that *you*
> >defined[2]...
> > I am told that the OSS Nokalva system has evolved since
> the workshop.
> >Supposedly, we can now expect them to deliver better compression and
> >better speed. However, I've never seen this documented.
> >
> > bob wyman
> >
> >[1]
> >http://www.w3.org/2003/08/binary-interchange-workshop/32-OSS-
Nokalva-P
>osition-Paper-updated.pdf
>[2] Sosnoski's XML Test Documents page:
>http://www.sosnoski.com/opensrc/xmlbench/documents.html
>
>
>Thanks for the pointer, I don't think I'd gone through their paper
>before. It'll be interesting to see how close their ASN.1 Infoset
>approach can get to XBIS performance (at least in terms of the ratio to
>text parse/generate speed; since XBIS is only Java at present and theirs
>appears to be only C++ a direct comparison is difficult).
Please keep in mind the following points:
1) That test was based on an early draft of the Fast Infoset standard
(called X.695 at that time). The Fast Infoset draft has changed a lot since
then.
2) The primary objective of that test program was to measure size. The
speed results obtained are hard to evaluate, although they are always better
than Xerces/C 2.2 parsing XML. I believe that the code could be optimized
to achieve a higher speed, especially with the new draft of the Fast Infoset
standard.
Alessandro Triglia
OSS Nokalva
>- Dennis
>
>--
>Dennis M. Sosnoski
>Enterprise Java, XML, and Web Services
>Training and Consulting
>http://www.sosnoski.com
>Redmond, WA 425.885.7197
>
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