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> Date: Wed, 22 Mar 2006 16:19:56 -0500
> From: d_a_carver@yahoo.com
> To: xml-dev@lists.xml.org
> Subject: [xml-dev] XML Performance in a Transacation
>
> I've been requested to provide some numbers to show that actual XML
> validation results and parsing are a small portion of the overall
> transaction process, when dealing with XML in a B2B process. Any
> information that can be provided would be appreciated.
See http://lists.w3.org/Archives/Public/www-ws/2004Oct/att-0032/MNicola_CIKM_2003_1_.pdf "XML Parsing - A Threat to Database Performance." Be forewarned that the conclusion may be unpalatable:
"We reported real-world experiences of using XML with databases
where XML parsing was the main performance bottleneck. This
motivated an analysis of the cost of SAX parsing and DTD &
XML schema validation. We find that parsing even small XML
documents without validation can increase the CPU cost of a relational
database transaction by 2 to 3 times or more. Parsing with
schema validation and without grammar caching can increase
transaction cost by 10 times or more. This is a serious problem for
high performance transaction oriented database applications which
intend to use XML"
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