RE: [xml] libXml speed and memory use (v Xerces)

[Vincent Finn <vincent finn automsoft com>]

Oddly enough I am using xerces 2.1 !

I was just checking in case there was a setting somewhere that I might be
missing

oh well, I'll do some more tests

> -----Original Message-----
> From: Jesse Pelton [mailto:jsp PKC com]
> Sent: 18 July 2003 18:00
> To: 'xml gnome org'
> Subject: RE: [xml] libXml speed and memory use (v Xerces)
>
>
> Benchmarking is a notoriously difficult thing to do well; so 
> much depends on
> the particulars.  Your benchmark may be a better or worse 
> reflection of your
> actual use case(s) than the one on SourceForge.
>
> Bear in mind that the benchmark is a bit dated.  It compares 
> Xerces 2.1 and
> libxml2 2.4.30; current versions are 2.3 and 2.5.8 
> respectively.  The Xerces
> crew has done a fair amount of performance tuning since 2.1, 
> especially in
> 2.2.
>
> > -----Original Message-----
> > From: Vincent Finn [mailto:vincent finn automsoft com] 
> > Sent: Friday, July 18, 2003 12:49 PM
> > To: 'xml gnome org'
> > Subject: [xml] libXml speed and memory use (v Xerces)
> >
> >
> > Hi,
> >
> > On the web page for libXml there are time comparisons given 
> > between it and
> > xerces
> > and lib comes out ahead
> >
> > I am comparing it to xerces (not in a very sophisticated way) 
> > and getting
> > very different results
> >
> > I'll put my code and results at the bottom but basically xerces uses
> > substantially less memory
> > and is noticeably quicker
> >
> > Are there any optimisations in building of libXml2.dll that 
> > can be switched
> > on and off for performance?
> >
> > since I might have expected one or the other to be worse but 
> > not both !!
> >     
> >     Vin
> >
> > Here is the code I used
> >
> > libXml
> > ------
> >     int iStartTime = time(NULL);
> >     int const c_iIterations = (int)1e4;
> >     for (int i = 0; i < c_iIterations; ++i)
> >     {
> >             xmlDocPtr test = xmlParseFile(strFileName.c_str());
> >             xmlFreeDoc(test);
> >     }
> >     int iEndTime = time(NULL) - iStartTime;
> >
> > results 
> >     Memory use 2,154,496 bytes
> >     time taken 120 seconds
> >
> > --------------------------------------------------
> >
> > xerces
> > ------
> >     XMLPlatformUtils::Initialize();
> >     int iStartTime = time(NULL);
> >     int const c_iIterations = (int)1e4;
> >     for (int i = 0; i < c_iIterations; ++i)
> >     {
> >             XercesDOMParser test;
> >             test.parse(strFileName.c_str());
> >             DOMDocument* doc = test.getDocument();
> >     }
> >     int iEndTime = time(NULL) - iStartTime;
> >     XMLPlatformUtils::Terminate();
> > results
> >     Memory use 1,851,393 bytes
> >     time taken 95 seconds
> > _______________________________________________
> > xml mailing list, project page  http://xmlsoft.org/
> > xml gnome org
> > http://mail.gnome.org/mailman/listinfo/xml
> _______________________________________________
> xml mailing list, project page  http://xmlsoft.org/
> xml gnome org
> http://mail.gnome.org/mailman/listinfo/xml