Re: [dom4j-user] Has someone tested this?

[David D. Lucas]

I ran a few of my JUnit tests and feel that the following represents the 
 deltas in performance against dom4j 1.3+.  Keep in mind the test was 
the same using the same code accessing DOM4J.  The only differences 
between these tests was the SAX Parser being used.  Keep in mind that 
they may have a more effiecient use of SAX and DOM handlers and this 
comparison does not take in account the best options for each parser.

Parser                   |      Gain
=========================+===============
Xerces 2.0.1             |      0.98
Xerces 2.3.0             |      1.00
FastParser (JAPISoft)    |      1.16
JDK 1.4.1 (JAXP default) |      1.18
I still have more tests to run, but in the initial review, it does look 
like a simple test ran with different JAXP Sax Driver / Parsers and it 
appears that JDK 1.4.1 is the winner with an improvement over my 
baseline of 18% better.  FastParser came in at 16% better than my 
baseline of Xerces 2.3.0.  Of course I only saw about 2 to 5% 
improvement between 2.0.1 and 2.3.0.

As soon as I get the latest DOM4J setup, I will run again.  Any 
additional news I will gladly publish.

Thanks,
Dave
David D. Lucas wrote:
But DOM4J still needs a parser.  So the numbers may have been with the 
JAXP stock parser for JDK1.4.1.  I am interested in comparing the 
performance of DOM4J under Xerces and FastParser.

Anyone else interested?

Later,
Dave



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