[Qgis-psc] Proposal to support multi-threaded development

[Andreas Neumann]

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Hi all,

I can understand Paolos doubts about the procedure. Perhaps it is the
one of the upcoming tasks of the PSC to regulate the procedure - as
you may be confronted with similar requests in the future.

As to the question how much you have on the bank account: I can't give
you the exact numbers, but the rough numbers, as qgis-ch and qgis
international share the same bank account and only Horst has full
access to the accounting. But you should have somewhere between 20 and
25k Euros in the account. Every month a couple hundred trickle in
through Paypal and other donations, besides other bigger sponsoring.

The reason I suggested it is that we should not wait too long to get
the threaded renderer and a multi-threading architecture in place.
This is what users expect from a modern platform and the longer we
wait the more complicated it will be for the developers - as there
will be more providers and more functionality that can be broken.
Obviously, besides the financial support for Martin, we would support
from the community with regards to testing/QA and working on the
different providers.

BTW: I also think that performance and stability should be a focus of
the upcoming releases. We are clearly not yet where we want to be in
respect to both performance and stability.

I also hope that someone can have a look at Alvaro's work and see if
and how this can be applied.

Perhaps Marco can comment on the work he did on the threaded renderer
in QGIS enterprise. I guess there are reasons. Customers demand a
stable and performant release with long-term support. Something that
the main project cannot always deliver. I am pretty sure that Marco
can share some of the experience and provide advice.

Best greetings,
Andreas


Am 25.11.2013 19:16, schrieb Paolo Cavallini:
> Il 25/11/2013 17:48, Jürgen E. Fischer ha scritto:
> 
>> On Sun, 24. Nov 2013 at 17:30:51 +0100, Andreas Neumann wrote:
>>> I am asking the PSC that the international QGIS project is
>>> also co-funding this project, perhaps with approx. Euro 5k.
> 
>> +1, if we have the funds.
> 
> I've asked Horst. He's not available until Dec 9th. Will let you
> know.
> 
>>> Marco Hugentobler worked on multi-threaded rendering in QGIS
>>> enterprise (based on the 1.9x branch).  Horst demoed this
>>> version at the recent QGIS CH coordination meeting. It looks
>>> very promising as it does not block the UI. Users can navigate
>>> to a different extent while QGIS is still rendering. QGIS would
>>> then cancel the old render threads and start with the new
>>> threads. But this work is not compatible with the 2.x 
>>> development branch.
> 
>> Isn't that a dead end?  Makes me wonder...
> 
> also difficult to understand for me.
> 
> My doubts (sorry, I'm on the bad side of the fence, in the interest
> of the project):
> 
> * we surely have the money, but 5k is a large part of our budget *
> would the money go to Lutra or directly to Martin? * we are still
> far from the full budget: what happens if we reach only half way?
> the multithreading work was already sponsored by GSoC, got halfway,
> and never merged * we do not have a policy for sponsoring features;
> I do not feel comfortable sponsoring it on a "first ask - first
> serve" basis, without a general plan; e.g. many users think a major
> bugfixing effort would be far more important than multithtread; 
> others need a better osgeo4w, etc.; BTW, I'm pretty sure we could
> raise more money for these tasks.
> 
> I hope I did not sound too harsh: I'd love to have multithreading. 
> BTW, it seems to me that the work by Alvaro has received very
> little attention from devs, and it has the potential to speed up
> things up considerably: shouldn't we take care of this?
> 
> All the best.
> 
> _______________________________________________ Qgis-psc mailing
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