[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Slides from "Web Services Security Issues"
The bottleneck for XML processing in an application is dependent on the application. This is all old ground. To some people the wire size is important so the added cost of compressing/decompressing is fine. For others, processing time is the bottleneck so compounding XML parsing with the cost of compressing/decompressing XML makes things worse not better. There is no one-size-fits-all solution to optimization problems. -- PITHY WORDS OF WISDOM If you don't change your direction, you may end up where you were headed. ________________________________ From: Bullard, Claude L (Len) [mailto:len.bullard@i...] Sent: Wed 8/18/2004 8:03 AM To: 'Ken North'; xml-dev@l... Subject: RE: Slides from "Web Services Security Issues" Thanks Ken. I found the slides to be a quick and easy read. Michael Leventhal included the following quote in his presentation and I am interested in the reaction of parties here to it since there have been multiple posts to the effect that the XML parse was not where performance was lost in contrast to events such as compression/decompression and that attempting to improve this is a premature optimization. This quote argues the opposite position and might suggest that the XML Binary efforts are not misguided: "Security Depends on XML Performance *Matthias Nicola and Jasmi John of IBM researched current approaches to processing XML for database processing. Their conclusion: *"XML parsing is generally known to have poor performance characteristics relative to transactional database processing. Yet, its potentially fatal impact on overall database performance is being underestimated...the desired response times and transaction rates over XML data can not be achieved without major improvements in XML parsing technology." * Matthias Nicola, Jasmi John: "XML Parsing: A Threat to Database Performance", 12th Intl. Conference on Information and Knowledge Management, CIKM'2003, New Orleans, November 2003. len From: Ken North [mailto:kennorth@s...] Presentation slides from August 10 SDSIC web services panel discussion are now online. Video and audio to follow: http://www.webservicessummit.com/SDSIC_Aug2004.htm ----------------------------------------------------------------- The xml-dev list is sponsored by XML.org <http://www.xml.org>, an initiative of OASIS <http://www.oasis-open.org> The list archives are at http://lists.xml.org/archives/xml-dev/ To subscribe or unsubscribe from this list use the subscription manager: <http://www.oasis-open.org/mlmanage/index.php>
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