[Qgis-psc] QGIS Server funding

[Neumann, Andreas]

Hi Yves, 

Thanks for checking. 

Please forward the technical details. 4-5 days of work is a substantial
investment, so we need to better understand what is involved, what are
the suggestions for speeding up PNG encoding and what the expected
result will be. 

If possible, I would still propose to ask the City of Uster, if they
would pay for it. But, they would need, just like we - more details and
an offer. 

Thanks, 

Andreas 

On 2017-07-18 11:09, yjacolin wrote:

> Hello, 
> 
> Here a short report about issues on PNG format. We are checking the first issue on PNG compression as it seems that it is a really specific use case.  
> 
> However we did some profiling on WMS getmap and motives that we lost a lot of time is spent on emcoding the in memory image into png. This issue needs 4-5 days. 
> 
> I got a more technical information on another email address but I can't copy past easily from my laptop to my phone  (hostel Wi-Fi is not working well). 
> 
> Y. 
> 
> Envoyé depuis mon smartphone Samsung Galaxy. 
> 
> -------- Message d'origine -------- 
> De : Andreas Neumann <andreas at qgis.org> 
> Date : 10/07/2017 15:36 (GMT+01:00) 
> À : Régis Haubourg <regis.haubourg at gmail.com> 
> Cc : QGIS PSC <qgis-psc at lists.osgeo.org>, Yves Jacolin <yjacolin at free.fr>, Vincent Picavet <vincent.picavet at oslandia.com>, info at 3liz.com, blottiere <paul at oslandia.com>, Yves Jacolin <yves at qgis.org>, Hugo Mercier <hugo.mercier at oslandia.com> 
> Objet : Re: [Qgis-psc] QGIS Server funding 
> 
> Hi Yves and Régis,
> 
> Just as a short note regarding PNG encoding in QGIS server:
> 
> The City of Uster would be willing to finance this, but they need a clear plan and some guarantee that there actually will be a sensible performance improvement. They can't just sponsor on the outlook that it may or may not be an improvement (meaning they can't fund general research were the outcome is uncertain).
> 
> Andreas Vonlaufen would be the contact in uster. Andreas knows about the project but apparently the contract wasn't agreed upon yet, as the outcome of the proposal was too uncertain for the City of Uster.
> 
> Andreas 
> 
> On 10 July 2017 at 15:17, Régis Haubourg <regis.haubourg at gmail.com> wrote:
> 
> Hi all,   
> 
> After getting in sync with 3liz, here is a proposal of task : 
> 
> C2C:  1 KEUR for making automatic reports with the performance benchmark platform 
> 
> 3Liz:   6 KEUR for GetPrint refactor, and some new feature (WFS 1.1.0 and some caching improvements) 
> 
> OSLANDIA : 6 KEUR for OGC unconformity checks and fixes 
> 
> Yves, can you please react upon, that if you have plans to work on png encoder improvements?  
> 
> Cheers 
> Régis 
> 
> 2017-07-07 14:02 GMT+02:00 Yves Jacolin <yjacolin at free.fr>:
> Good point, Emmanuel talked me about this. I need to discuss of this with my
> collegue first.
> 
> Y.
> 
> On vendredi 7 juillet 2017 13:02:20 CEST Andreas Neumann wrote:
>> Hi Yves,
>> 
>> What about the idea to speed up PNG encoding? I remember that the C2C devs
>> found out, that the PNG encoder from qt isn't very efficient and a lot of
>> time is spent by QGIS server on this PNG encoding. An alternative PNG
>> encoder could be more efficient. Could we invest some ressources in that?
>> It wouldn't be as urgent as the refactoring, but performance improvements
>> are always welcome.
>> Or is the PNG encoder in qt5 now more efficient than the one in qt4?
>> 
>> Andreas
>> 
>> On 7 July 2017 at 10:58, Yves Jacolin <yjacolin at free.fr> wrote:
>>> Hello Régis,
>>>
>>> On vendredi 7 juillet 2017 10:47:40 CEST Régis Haubourg wrote:
>>> > @Yves, please raise the hand if you are willing to take some funds on
>>> > the
>>> > speed benchmark platform, this would also be very welcome by dev's and
>>> > customers.
>>>
>>> I was wondering what Camptocamp can do for this as I had confirmation that
>>> we
>>> have some resource to work on this part.
>>>
>>> About the speed benchmark plateform we can make it automatic (mainly some
>>> cleanup, create automatic reporting and improving QGIS automatic build
>>> with
>>> docker). For these task we won't need more than 1 kEUR though.
>>>
>>> Finally we can also host this in one of our public server but the deploy
>>> of
>>> the project should be easy if you need to test somewhere else.
>>>
>>> Y.

-- 

--
Andreas Neumann QGIS.ORG [1] board member (treasurer) 
_______________________________________________
Qgis-psc mailing list
Qgis-psc at lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/qgis-psc 

 

Links:
------
[1] http://QGIS.ORG
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-psc/attachments/20170718/67622800/attachment.html>