Performance problems with XALAN C++

["Bruno Mendonça (PTSI)" <br...@tmn.pt>]

Hello,

 

This is my first time trying out XALAN.

I have rebuilt the XALAN C++ 1.10 and XERCES 2.7.0 to use the ICU support.

 

I tried out both the XALAN C++ and the XALAN Java versions on a source file.

I then realized that XALAN C++ is much slower (very much slower) than the XALAN Java version.

 

Is this normal?

 

Can anybody explain to me what I may be doing wrong?

 

 

Regards,

Bruno Mendonça Costa

 



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Re: Performance problems with XALAN C++

[David Bertoni <db...@apache.org>]

Bruno Mendonça (PTSI) wrote:
> Hello,
> 
>  
> 
> This is my first time trying out XALAN.
> 
> I have rebuilt the XALAN C++ 1.10 and XERCES 2.7.0 to use the ICU support.
> 
>  
> 
> I tried out both the XALAN C++ and the XALAN Java versions on a source file.
> 
> I then realized that XALAN C++ is much slower (very much slower) than 
> the XALAN Java version.
> 

Sometimes the C++ processor is slower than the Java process, and 
sometime it's faster, depending on the inputs.  Several weeks ago 
someone was posting saying the C++ processor was several orders of 
magnitude faster with his particular inputs.

If you want someone to look into the performance issue, the best thing 
to do is to create Jira issue and attach the stylesheet(s) and XML 
document(s).  You can find the Jira database here:

http://issues.apache.org/jira/browse/XALANC

Dave