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From "Lewis, Andrew J" <Andrew.Le...@jbosc.ksc.nasa.gov>
Subject RE: new xsltc.jar
Date Fri, 22 Feb 2002 13:12:16 GMT
To whom must we beg for this to be a high priority? :)

> ----------
> From: 	Davanum Srinivas[SMTP:dims@yahoo.com]
> Reply To: 	cocoon-dev@xml.apache.org
> Sent: 	Friday, February 22, 2002 7:47 AM
> To: 	cocoon-dev@xml.apache.org
> Cc: 	Jacek R. Ambroziak; tcurdt@dff.st
> Subject: 	Re: new xsltc.jar
> 
> Torsten,
> 
> We cannot use xsltc in C2 as-is because of a bug in their JAXP support:
> http://nagoya.apache.org/bugzilla/show_bug.cgi?id=6312
> 
> Thanks,
> dims
> 
> --- Torsten Curdt <tcurdt@dff.st> wrote:
> > On Thu, 21 Feb 2002, Jacek R. Ambroziak wrote:
> > 
> > > The performance bug seems to be fixed now.
> > > As I expected several other benchmarks benefit
> > > from the fix as well  (decoy, patterns).
> > >
> > > The new magic numbers on my machine are
> > >
> > > XSLTC    1192
> > > XT            471
> > > Saxon       298
> > > XalanJ      197
> > >
> > > The infamous 'dbonerow' test doesn't need rewriting
> > > into "match/if"  anymore and 10 iterations take about 1 second
> > > (900 MHz, J2SDK1.4) instead of 130 seconds as before.
> > >
> > > That's not the end of the story 'cause I see bunches
> > > of opportunities for further improvements.
> > >
> > > That translets are about 20 times faster now
> > > on 'dbonerow' than XT/Saxon/XalanJ is no big surprise:
> > > since FORTRAN times compiled code ran faster than interpreted.
> > > When eg. Saxon works on 'dbonerow'
> > > the only bytecodes that are actually executed are the bytecodes
> > > Mike Kay put into saxon.jar.  In the case of XSLTC
> > > some bytecodes come from prepackaged libraries,
> > > but (hopefully)  most of the "action" is handled by
> > > bytecodes 'freshly' generated ('personalized'/specialized)
> > > for the stylesheet at hand.
> > >
> > > The new 'xsltc.jar' is available from me.
> > 
> > wow!! ...instead of talking about number - why not try it out.
> > What needs to be changed to use it with cocoon - that's the only
> > question I see right now :)
> > --
> > Torsten
> > 
> > 
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> > 
> 
> 
> =====
> Davanum Srinivas - http://jguru.com/dims/
> 
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