Re: [QGIS-Developer] HOWTO INSTALL QGS ON LINUX WITH PROVIDER TO ORACLE SPATIAL

2022-06-20 Thread Richard Duivenvoorde via QGIS-Developer 



WHY ARE YOU SCREAMING THIS :-)

It is some time ago, but I did a write up of the process for CentOS some time 
ago:

https://zuidt.nl/blog/html/2015/10/12/build_qgis_master_with_oracle_provider_yourself_on_centos7.html

You need to adapt it for Ubuntu but it contains (I think) enough pointers if 
you are already familiar with compiling QGIS for Ubuntu..

HOPE THIS HELPS ;-)

Regards,

Richard Duivenvoorde

PS: why 20? should you not aim for 22? as that is the latest LTR?








On 6/21/22 06:39, Fredy Varon via QGIS-Developer wrote:

Hi,

I need help if someone knows howto install Qgis on Linux Ubuntu 20 to suport 
conection to Oracle to add layers from Oracle spatial

Thanks

-

*/FREDY VARON GARCIA/*

*Ing. Sistemas *


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Re: [QGIS-Developer] HOWTO INSTALL QGS ON LINUX WITH PROVIDER TO ORACLE SPATIAL

2022-06-20 Thread Fredy Varon via QGIS-Developer 

Hi,

I need help if someone knows howto install Qgis on Linux Ubuntu 20 to suport 
conection to Oracle to add layers from Oracle spatial

Thanks

-
FREDY VARON GARCIA
Ing. Sistemas



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Re: [QGIS-Developer] Qgis server: terrible performance with Qgis 3.26

2022-06-20 Thread Even Rouault via QGIS-Developer 
Use sysprof or just run under a debugger and interrupt regularly should 
help you spot in which method(s) most time is spent


Le 20/06/2022 à 18:48, David Marteau via QGIS-Developer a écrit :


I used the following test:

readflags = Qgis.ProjectReadFlags() readflags |= 
Qgis.ProjectReadFlag.TrustLayerMetadata|Qgis.ProjectReadFlag.DontLoad3DViews|Qgis.ProjectReadFlag.DontLoadProjectStyles 
prj = QgsProject()%timeit -n 1 
prj.read(f"{datapath}/france_parts3_26.qgs",readflags)


105 ms ± 18.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

This improve the result  but we are still much higher that the loading 
time of 3.24: 15ms compared to 105ms



Le 20/06/2022 à 18:38, Nyall Dawson a écrit :



On Mon, 20 June 2022, 11:42 pm David Marteau,  wrote:

Hi,

> You should set the other new read optimisation flags here --
see

https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962

These are already available also in 3.24 and we use the  
`TrustLayerMetadata` in the above test. For server,  the other
flags are not applicable (Getprint requests need print layouts ).

So that mean we are comparing 3.24 to 3.26 with same level of
read optimisation and that does not change the fact that, for
that very same level of read optimisation, project's loading is
incredibly  slower in 3.26.


You'll need to set the new flags relating to skipping the 3d views 
and project style loading in order to compare properly. Neither of 
those things were occurring in 3.24, and both have an associated 
cost. And neither are relevant for server.


Nyall



Le 20/06/2022 à 15:10, Nyall Dawson a écrit :



On Mon, 20 June 2022, 9:37 pm David Marteau via QGIS-Developer,
 wrote:

Hi,

I have noticed a huge drop of performance while testing Qgis
server with Qgis 3.26, from 10x to 30x slower as usual.

Trying to reduce the problem I have found a huge increase of
time spend reading the project in 3.26 compared to 3.24.

Here some benchmark with very simple project from the test
data set. Note: the project has been updated with qgis 3.26:

Qgis 3.24:
==

readflags = QgsProject.ReadFlags()readflags |=
QgsProject.FlagTrustLayerMetadata

prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)

> 15.7 ms ± 205 µs per loop (mean ± std. dev. of 7 runs, 1 loop each)

Qgis 3.26:
==

readflags = QgsProject.ReadFlags() readflags |=
QgsProject.FlagTrustLayerMetadata


You should set the other new read optimisation flags here -- see

https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962

Nyall

​prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)

195 ms ± 44 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

There is a factor x10 between Qgis 3.24 et Qgis 3.26 for the
exact same project.
This has serious impact on requests: landing page catalog
request time increased from approximatevely 110ms to more
than 3.0s with our test data set.


David Marteau
www.3liz.com 

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Re: [QGIS-Developer] Qgis server: terrible performance with Qgis 3.26

2022-06-20 Thread Nyall Dawson via QGIS-Developer 
On Tue, 21 June 2022, 2:48 am David Marteau,  wrote:

> I used the following test:
>
> readflags = Qgis.ProjectReadFlags()readflags |= 
> Qgis.ProjectReadFlag.TrustLayerMetadata|Qgis.ProjectReadFlag.DontLoad3DViews|Qgis.ProjectReadFlag.DontLoadProjectStyles
> prj = QgsProject()
> %timeit -n 1 prj.read(f"{datapath}/france_parts3_26.qgs",readflags)
>
> 105 ms ± 18.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
>
> This improve the result  but we are still much higher that the loading
> time of 3.24: 15ms compared to 105ms
>

Thanks for the update! Can you fire up hotspot (or similar) and see where
the time is spent?

Nyall

>
> Le 20/06/2022 à 18:38, Nyall Dawson a écrit :
>
>
>
> On Mon, 20 June 2022, 11:42 pm David Marteau,  wrote:
>
>> Hi,
>> > You should set the other new read optimisation flags here -- see
>> https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962
>>
>> These are already available also in 3.24 and we use the
>> `TrustLayerMetadata` in the above test. For server,  the other flags are
>> not applicable (Getprint requests need print layouts ).
>>
>> So that mean we are comparing 3.24 to 3.26 with same level of read
>> optimisation and that does not change the fact that, for that very same
>> level of read optimisation, project's loading is incredibly  slower in 3.26.
>>
>
> You'll need to set the new flags relating to skipping the 3d views and
> project style loading in order to compare properly. Neither of those things
> were occurring in 3.24, and both have an associated cost. And neither are
> relevant for server.
>
> Nyall
>
>>
>>
>> Le 20/06/2022 à 15:10, Nyall Dawson a écrit :
>>
>>
>>
>> On Mon, 20 June 2022, 9:37 pm David Marteau via QGIS-Developer, <
>> qgis-developer@lists.osgeo.org> wrote:
>>
>>> Hi,
>>>
>>> I have noticed a huge drop of performance while testing Qgis server with
>>> Qgis 3.26, from 10x to 30x slower as usual.
>>>
>>> Trying to reduce the problem I have found a huge increase of time spend
>>> reading the project in 3.26 compared to 3.24.
>>>
>>> Here some benchmark with very simple project from the test data set.
>>> Note: the project has been updated with qgis 3.26:
>>>
>>> Qgis 3.24:
>>> ==
>>>
>>> readflags = QgsProject.ReadFlags()
>>> readflags |= QgsProject.FlagTrustLayerMetadata
>>>
>>> prj = QgsProject()
>>>
>>> %timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)
>>>
>>> > 15.7 ms ± 205 µs per loop (mean ± std. dev. of 7 runs, 1 loop each)
>>>
>>> Qgis 3.26:
>>> ==
>>>
>>> readflags = QgsProject.ReadFlags()readflags |= 
>>> QgsProject.FlagTrustLayerMetadata
>>>
>>>
>> You should set the other new read optimisation flags here -- see
>> https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962
>>
>> Nyall
>>
>> ​prj = QgsProject()
>>>
>>> %timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)
>>>
>>> 195 ms ± 44 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
>>>
>>> There is a factor x10 between Qgis 3.24 et Qgis 3.26 for the exact same
>>> project.
>>> This has serious impact on requests: landing page catalog request time
>>> increased from approximatevely 110ms to more than 3.0s with our test data
>>> set.
>>>
>>> David Marteau
>>> www.3liz.com
>>> ___
>>> QGIS-Developer mailing list
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>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
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Re: [QGIS-Developer] Qgis server: terrible performance with Qgis 3.26

2022-06-20 Thread David Marteau via QGIS-Developer 

I used the following test:

readflags = Qgis.ProjectReadFlags() readflags |= 
Qgis.ProjectReadFlag.TrustLayerMetadata|Qgis.ProjectReadFlag.DontLoad3DViews|Qgis.ProjectReadFlag.DontLoadProjectStyles 
prj = QgsProject()%timeit -n 1 
prj.read(f"{datapath}/france_parts3_26.qgs",readflags)


105 ms ± 18.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

This improve the result  but we are still much higher that the loading 
time of 3.24: 15ms compared to 105ms



Le 20/06/2022 à 18:38, Nyall Dawson a écrit :



On Mon, 20 June 2022, 11:42 pm David Marteau,  wrote:

Hi,

> You should set the other new read optimisation flags here -- see

https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962

These are already available also in 3.24 and we use the  
`TrustLayerMetadata` in the above test. For server,  the other
flags are not applicable (Getprint requests need print layouts ).

So that mean we are comparing 3.24 to 3.26 with same level of read
optimisation and that does not change the fact that, for that very
same level of read optimisation, project's loading is incredibly 
slower in 3.26.


You'll need to set the new flags relating to skipping the 3d views and 
project style loading in order to compare properly. Neither of those 
things were occurring in 3.24, and both have an associated cost. And 
neither are relevant for server.


Nyall



Le 20/06/2022 à 15:10, Nyall Dawson a écrit :



On Mon, 20 June 2022, 9:37 pm David Marteau via QGIS-Developer,
 wrote:

Hi,

I have noticed a huge drop of performance while testing Qgis
server with Qgis 3.26, from 10x to 30x slower as usual.

Trying to reduce the problem I have found a huge increase of
time spend reading the project in 3.26 compared to 3.24.

Here some benchmark with very simple project from the test
data set. Note: the project has been updated with qgis 3.26:

Qgis 3.24:
==

readflags = QgsProject.ReadFlags()readflags |=
QgsProject.FlagTrustLayerMetadata

prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)

> 15.7 ms ± 205 µs per loop (mean ± std. dev. of 7 runs, 1 loop each)

Qgis 3.26:
==

readflags = QgsProject.ReadFlags() readflags |=
QgsProject.FlagTrustLayerMetadata


You should set the other new read optimisation flags here -- see

https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962

Nyall

​prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)

195 ms ± 44 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

There is a factor x10 between Qgis 3.24 et Qgis 3.26 for the
exact same project.
This has serious impact on requests: landing page catalog
request time increased from approximatevely 110ms to more
than 3.0s with our test data set.


David Marteau
www.3liz.com 

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Re: [QGIS-Developer] Qgis server: terrible performance with Qgis 3.26

2022-06-20 Thread David Marteau via QGIS-Developer 

Hi,

> You should set the other new read optimisation flags here -- see 
https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962


These are already available also in 3.24 and we use the   
`TrustLayerMetadata` in the above test. For server,  the other flags are 
not applicable (Getprint requests need print layouts ).


So that mean we are comparing 3.24 to 3.26 with same level of read 
optimisation and that does not change the fact that, for that very same 
level of read optimisation, project's loading is incredibly  slower in 3.26.



Le 20/06/2022 à 15:10, Nyall Dawson a écrit :



On Mon, 20 June 2022, 9:37 pm David Marteau via QGIS-Developer, 
 wrote:


Hi,

I have noticed a huge drop of performance while testing Qgis
server with Qgis 3.26, from 10x to 30x slower as usual.

Trying to reduce the problem I have found a huge increase of time
spend reading the project in 3.26 compared to 3.24.

Here some benchmark with very simple project from the test data
set. Note: the project has been updated with qgis 3.26:

Qgis 3.24:
==

readflags = QgsProject.ReadFlags()readflags |=
QgsProject.FlagTrustLayerMetadata

prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)

> 15.7 ms ± 205 µs per loop (mean ± std. dev. of 7 runs, 1 loop each)

Qgis 3.26:
==

readflags = QgsProject.ReadFlags() readflags |=
QgsProject.FlagTrustLayerMetadata


You should set the other new read optimisation flags here -- see 
https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962


Nyall

​prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)

195 ms ± 44 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

There is a factor x10 between Qgis 3.24 et Qgis 3.26 for the exact
same project.
This has serious impact on requests: landing page catalog request
time increased from approximatevely 110ms to more than 3.0s with
our test data set.


David Marteau
www.3liz.com 

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Re: [QGIS-Developer] [Qgis-community-team] Changelog, please check

2022-06-20 Thread Ethan Snyder via QGIS-Developer 
Richard:

This new feature is missing from the changelog (probably because it 
didn’t get all the proper tags): https://github.com/qgis/QGIS/pull/48929
It was primarily authored by me (Ethan Snyder), and polished and 
merged by Nyall.

Here’s the original PR which Nyall copied for changes: 
https://github.com/qgis/QGIS/pull/48314

Thanks,

Ethan Snyder

From: Tim Sutton 
Sent: Saturday, June 18, 2022 7:33 AM
To: Richard Duivenvoorde 
Cc: qgis-developer ; qgis-community 

Subject: Re: [QGIS-Developer] [Qgis-community-team] Changelog, please check

That looks great @Richard Duivenvoorde  thanks so 
much!

Regards

Tim

On Sat, Jun 18, 2022 at 5:54 AM Richard Duivenvoorde 
mailto:rdmaili...@duif.net>> wrote:
Hi People,

I (silently) added the visual changelog 3.26 to the site already, please check:

https://qgis.org/en/site/forusers/visualchangelog326/index.html

for any glitches.

If found, either let me know, or just fix it yourself in the rst at

https://github.com/qgis/QGIS-Website/edit/master/source/site/forusers/visualchangelog326/index.rst

so I can push stuff to transifex (for translations) after the packaging is 
finished (when the banner has also been updated).

Regards,

Richard Duivenvoorde
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Re: [QGIS-Developer] Qgis server: terrible performance with Qgis 3.26

2022-06-20 Thread Nyall Dawson via QGIS-Developer 
On Mon, 20 June 2022, 9:37 pm David Marteau via QGIS-Developer, <
qgis-developer@lists.osgeo.org> wrote:

> Hi,
>
> I have noticed a huge drop of performance while testing Qgis server with
> Qgis 3.26, from 10x to 30x slower as usual.
>
> Trying to reduce the problem I have found a huge increase of time spend
> reading the project in 3.26 compared to 3.24.
>
> Here some benchmark with very simple project from the test data set. Note:
> the project has been updated with qgis 3.26:
>
> Qgis 3.24:
> ==
>
> readflags = QgsProject.ReadFlags()
> readflags |= QgsProject.FlagTrustLayerMetadata
>
> prj = QgsProject()
>
> %timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)
>
> > 15.7 ms ± 205 µs per loop (mean ± std. dev. of 7 runs, 1 loop each)
>
> Qgis 3.26:
> ==
>
> readflags = QgsProject.ReadFlags()readflags |= 
> QgsProject.FlagTrustLayerMetadata
>
>
You should set the other new read optimisation flags here -- see
https://github.com/qgis/QGIS/blob/88ebb3f2f513dbce5a775f50e51ea0117f859c65/src/core/qgis.h#L1962

Nyall

​prj = QgsProject()
>
> %timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)
>
> 195 ms ± 44 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
>
> There is a factor x10 between Qgis 3.24 et Qgis 3.26 for the exact same
> project.
> This has serious impact on requests: landing page catalog request time
> increased from approximatevely 110ms to more than 3.0s with our test data
> set.
>
> David Marteau
> www.3liz.com
> ___
> QGIS-Developer mailing list
> QGIS-Developer@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
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[QGIS-Developer] Qgis server: terrible performance with Qgis 3.26

2022-06-20 Thread David Marteau via QGIS-Developer 

Hi,

I have noticed a huge drop of performance while testing Qgis server with 
Qgis 3.26, from 10x to 30x slower as usual.


Trying to reduce the problem I have found a huge increase of time spend 
reading the project in 3.26 compared to 3.24.


Here some benchmark with very simple project from the test data set. 
Note: the project has been updated with qgis 3.26:


Qgis 3.24:
==

readflags = QgsProject.ReadFlags()readflags |= 
QgsProject.FlagTrustLayerMetadata


prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)


15.7 ms ± 205 µs per loop (mean ± std. dev. of 7 runs, 1 loop each)


Qgis 3.26:
==

readflags = QgsProject.ReadFlags() readflags |= 
QgsProject.FlagTrustLayerMetadata


​prj = QgsProject()

%timeit -n 1 prj.read(f"{datapath}/france_parts.qgs",readflags)

195 ms ± 44 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

There is a factor x10 between Qgis 3.24 et Qgis 3.26 for the exact same 
project.
This has serious impact on requests: landing page catalog request time 
increased from approximatevely 110ms to more than 3.0s with our test 
data set.



David Marteau
www.3liz.com 
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Re: [QGIS-Developer] Object Inspector in QGIS 3.22.7: How to make it work?

2022-06-20 Thread WhereGroup 

Hey Bruno,

good question, I never got it to show more than just function names of 
an open (and saved) script, which I could then click for quick 
navigation in the script. I am also very interested if it actually could 
do more than that.


To get to the same point as me you have to have a script open in the 
script editor, save it and open the object inspector. It will reload 
every time you save the script.


Cheers, Hannes

Am 19.06.22 um 09:03 schrieb Bruno Streit via QGIS-Developer:

Hi everybody

I'm trying to get into pyqgis. In the Python Console is an Object Inspector, which would 
be very helpful for me, but I can't make it to show any information. I activated it in 
the Properties and there is "Object Inspector" written in it's window. How can 
I make it show information of an object? Is there a bug with it in QGIS 3.22.7?

Thank You
Bruno


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