Re: [xml] i'm here to contribute

[Daniel Veillard <veillard redhat com>]

On Mon, Oct 31, 2011 at 11:48:54PM +0100, Stefan Sauer wrote:
> On 09/18/2011 10:24 PM, Glen Hein wrote:
> > Hello,
> >
> > I'm a software developer and I'd like to contribute to Gnome's XML
> > project. I've used the libxml software for a long time and I'd like to
> > give something back.
> >
> > I just started a voluntary career break, but I'd like to stay active.
> >
> > I looked over the TODO file, but I'm not sure which item to tackle.
> > Could you recommend an item for someone new to the project?
> >
> > Thanks,
> > Glen Hein
>
> One thing that would be super cool would be multi-threaded xslt
> processing (e.g. for chunked document output). Unfortunately again, this
> is not trivial at all. But any speedup for xslt processing would be
> great. The docbook xml -> html step in gtk-doc is so slow that most
> developers to api-doc generation off still :/

   Processing chunks in a subthread is an interesting idea. The
stylesheet is read-only from a transformation process POV so that
may work without too much crazyness...
   Two suggestions:
    - what about a reduced simplified DocBook XSLT for gnome, using
      only what you care about, that could be packaged and registered
      in the XML Catalog, and potentially simplify the processing
      running an xsltproc -v on a number of documents and grepping the
      results may lead to interesting results (but that will be
      voluminous !).
    - check where the time is really spent, is that in the XPath engine ?
      I used to kcachegrind transformation on DocBook and try to find
      what were the hotspot, I think I had that flattened at the time
      (6-7 years ago) but with new stylesheets it's possible there
      is new troubles, as was pointed out recently.

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
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http://veillard.com/ | virtualization library  http://libvirt.org/