[poppler] Creating a Beta 3

[Albert Astals Cid]

El Dilluns, 26 de novembre de 2012, a les 11:56:54, Thomas Freitag va 
escriure:
> Am 23.11.2012 06:39, schrieb Adam Reichold:
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> > Hello,
> > 
> > Not sure if this question is intended for everybody on the list or
> > only the developers, but I'll just assume it's for everyone:
> > 
> > Looking at the feature list and reading the bug tracker, I'd say that
> > thread-safety needs to be rethought. Maybe one could make this a
> > priority for the next release cycle, trying to implement the long-term
> > solution of removing PDFDoc::getXRef and better distributing the
> > workload, maybe under Thomas' and/or Albert's supervision. (I would be
> > happy to help as much as I can, but I am not very knowledgeable about
> > Poppler's internals yet.)
> 
> I had yesterday a long, long day working on getting annotations thread
> safe, and I recognized several things:
> 1. We can't remove PDFDoc::getXRef completely: we have the Gfx:getXRef
> only during rendering, but there are several different tasks done with
> poppler, i.e. getting information, manipulation annotations, rewrite
> PDF, etc. etc. This all must be done over PDFDoc:getXRef
> 2. I tried to copy the annotations for every thread, but after
> succeeding rendering became MUCH too slow.
> 3. Therefore I shared annotations over the threads (via the catalog),
> this was a also bigger task but at least successfully.
> Atfer completing that I made several tests:
> 1. Rendering with and without the patch takes the same time
> 2. Rendering with the patch but only one thread is nearly as fast as
> without the patch (It always took the same number of seconds for multi
> page PDF)
> 3. Rendering with more than one thread decrease the time for rendering,
> the more the complex the PDF is.
> 
> So the latest patch on
> https://bugs.freedesktop.org/show_bug.cgi?id=50992 does what is should
> do (I missed the notification e-mail for my latest comments, so I'm nor
> sure if everbody else got them), 

Mailman was down for while, but all the messages should have been delivered 
already now. Let's keep the discussion in the bug.

Cheers,
  Albert

> so if Albert is able to test it before
> beta 3 it would be nice to have it. Otherwise with my changes of
> yesterday the patch again became quite huge, so I would understand if
> Albert want to suspend it 'til next year.
> 
> Cheers,
> Thomas
> 
> > Still, I would argue for a third beta since the RTL stuff seems almost
> > like a bug and less like a missing feature and probably affects a lot
> > of people. (I would also include #2981 here, which depends on #55977.)
> > 
> > Best regards, Adam.
> > 
> > Am 23.11.2012 00:51, schrieb Albert Astals Cid:
> >> Hi guys, if you look at
> >> http://freedesktop.org/wiki/Software/poppler you'll see that there
> >> are 5 features listed for 0.22 and that I just released 0.21.2 that
> >> was supposed to be the last release with new features.
> >> 
> >> I don't think we'll be getting all 5 in, but if we create a new
> >> Beta 3 with let's say 1 week more of time maybe we can get 1 or 2
> >> more in.
> >> 
> >> What do you think?
> >> 
> >> Cheers, Albert _______________________________________________
> >> poppler mailing list poppler at lists.freedesktop.org
> >> http://lists.freedesktop.org/mailman/listinfo/poppler
> > 
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> > 
> > .
> 
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