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   RE: [xml-dev] XML Performance in a Transacation

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It's not exactly what you're looking for, and it's dated, but in case it

Here is a posting[1] that I made in Dec 2004 that refers to a study that
compared the performance of real-time trading systems using a text-based
wire representation (FIX) and SOAP. The study was done sometime in 2003
(exact date not specified).


[1] http://lists.xml.org/archives/xml-dev/200412/msg00263.html 

Joseph Chiusano
Booz Allen Hamilton
700 13th St. NW, Suite 1100
Washington, DC 20005
O: 202-508-6514  
C: 202-251-0731
Visit us online@ http://www.boozallen.com

-----Original Message-----
From: David Carver [mailto:d_a_carver@yahoo.com] 
Sent: Wednesday, March 22, 2006 5:58 PM
To: Greg Hunt
Cc: xml-dev@lists.xml.org
Subject: Re: [xml-dev] XML Performance in a Transacation

Greg, I appreciate the response, and agree whole heartedly that it 
varies greatly.   To narrow the scope down a bit, which doesn't really 
narrow it down much, I work for STAR which does XML Message 
specifications for the Automotive Retail industry.     The transaction I

was referring to was, retrieving the Data from a database, doing any
type of business logic on the data, populating the appropriate xml file,
validating the file, and then serializing it, and finally sending the
transaction out through a web service (whether SOAP or ebXML).

Now I have tried to explain to the powers that be that there are a wide
number of variables that can affect the overall transaction time, and
XML processing and validation is one of them.  Speed in this area is
greatly affected by the size of the xml, the type of validation being 
done, and the tools that are being used to create the XML.    I'm not 
really looking for concrete numbers, but general overall impressions on
XML performance in the above stated life cycle.  What percentage of the 
time involved does the parsing take.   Again, it varies greatly.

The issue has been raised by members as we look at migrating our
standards from OAGIS 8.0 to OAGIS 9.0 which implements Core Components.

I would expect 9.0 to have similiar results as UBL 1.0 since both
implement Core Components and very similar NDRs.  Because of the new
NDRs, the size of the XML files has increased, which was to be expected,
and my own ad-hoc tests indicate about 3% increase in parsing and 
validation time.   Which really in milliseconds is not that huge amount.

Hope that clarifies things a bit.   The answers you provided actually 
are very helpful.


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