Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Americo Gobbo]

Michael, is working fine! I've tested with and no rulers and the
performance is equal!
Thanks.


J. Americo Gobbo [Illustrator and Painter]
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On Sun, Sep 6, 2015 at 6:49 PM, Michael Henning 
wrote:

> Please update to latest gimp master and test. I think I fixed this.
>
> commit 3233a70bae756e8f62fb144cbce9d8f84ed25609
> Author: Michael Henning
> Date:   Sun Sep 6 00:05:32 2015 -0400
>
> libgimpwidgets: Avoid updating the rulers too often.
>
> Ever since 72617e42b, whenever the user generated a lot of mouse
> input, we would constantly queue redraws to the rulers. These redraws
> had a higher idle priority than updating the canvas, so we would
> rarely get around to canvas updates, which made certain tools
> (painting with dynamics, the blend tool) feel very unresponsive.
>
> This fixes it by only redrawing the rulers if the mouse has moved
> far from the last location, or if there are no idle handlers with
> a priority above LOW.
>
> From,
>drawoc
>
> On Sun, Sep 6, 2015 at 3:00 PM, Americo Gobbo 
> wrote:
>
>>
>> On Sun, Sep 6, 2015 at 3:04 PM, Richard 
>> wrote:
>>
>>> IIRC, this was previously discussed on the mailing list (and bugzilla)
>>> and the cairo library was identified as a culprit/accessory to the lag --
>>> as some users reported downgrading to a previous libcairo fixes the ruler
>>> lag.
>>>
>>> However, it also appears to have been properly fixed as of mid-August:
>>> https://bugzilla.gnome.org/show_bug.cgi?id=736411#c39
>>> 
>>>
>>
>> Thanks Richard, but it seems all OK are to windows... on my linux box the
>> problem is resolved only without rulers.
>>
>> I work only on linux, and in this box I've two GIMP, the stable 2.8.14
>> (otto ppa) and and the 2.9 devel (last git master). My box is ubuntu
>> gnome 14.04.2 - 64-bit. Memory 8Gb, Intel® Core™ i5-3570K CPU @ 3.40GHz ×
>> 4, Gallium 0.4 on AMD CAICOS.
>>
>> The 2.9 first of the patch of Michael Henning in August 11, was working
>> well with the rulers.
>> The 2.8.14 stable - ppa otto, is working well.
>>
>> git log on my 2.9 git master >
>>
>> commit 72617e42b426e6788c075539a20df7365d2cf102
>> Author: Michael Henning 
>> Date:   Tue Aug 11 16:20:59 2015 -0400
>>
>> Bug 736411 - Ruler updates cause slowdown when painting
>>
>> We now avoid drawing rulers in the position property setter and use
>> gtk's region invalidation instead. Previously, we were basically
>> redrawing the ruler inside the mouse event handler, which is pure
>> evil.
>>
>> thanks
>>
>
>
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Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Michael Henning]

Please update to latest gimp master and test. I think I fixed this.

commit 3233a70bae756e8f62fb144cbce9d8f84ed25609
Author: Michael Henning
Date:   Sun Sep 6 00:05:32 2015 -0400

libgimpwidgets: Avoid updating the rulers too often.

Ever since 72617e42b, whenever the user generated a lot of mouse
input, we would constantly queue redraws to the rulers. These redraws
had a higher idle priority than updating the canvas, so we would
rarely get around to canvas updates, which made certain tools
(painting with dynamics, the blend tool) feel very unresponsive.

This fixes it by only redrawing the rulers if the mouse has moved
far from the last location, or if there are no idle handlers with
a priority above LOW.

From,
   drawoc

On Sun, Sep 6, 2015 at 3:00 PM, Americo Gobbo  wrote:

>
> On Sun, Sep 6, 2015 at 3:04 PM, Richard  wrote:
>
>> IIRC, this was previously discussed on the mailing list (and bugzilla)
>> and the cairo library was identified as a culprit/accessory to the lag --
>> as some users reported downgrading to a previous libcairo fixes the ruler
>> lag.
>>
>> However, it also appears to have been properly fixed as of mid-August:
>> https://bugzilla.gnome.org/show_bug.cgi?id=736411#c39
>> 
>>
>
> Thanks Richard, but it seems all OK are to windows... on my linux box the
> problem is resolved only without rulers.
>
> I work only on linux, and in this box I've two GIMP, the stable 2.8.14
> (otto ppa) and and the 2.9 devel (last git master). My box is ubuntu
> gnome 14.04.2 - 64-bit. Memory 8Gb, Intel® Core™ i5-3570K CPU @ 3.40GHz ×
> 4, Gallium 0.4 on AMD CAICOS.
>
> The 2.9 first of the patch of Michael Henning in August 11, was working
> well with the rulers.
> The 2.8.14 stable - ppa otto, is working well.
>
> git log on my 2.9 git master >
>
> commit 72617e42b426e6788c075539a20df7365d2cf102
> Author: Michael Henning 
> Date:   Tue Aug 11 16:20:59 2015 -0400
>
> Bug 736411 - Ruler updates cause slowdown when painting
>
> We now avoid drawing rulers in the position property setter and use
> gtk's region invalidation instead. Previously, we were basically
> redrawing the ruler inside the mouse event handler, which is pure evil.
>
> thanks
>
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Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Americo Gobbo]

On Sun, Sep 6, 2015 at 3:04 PM, Richard  wrote:

> IIRC, this was previously discussed on the mailing list (and bugzilla) and
> the cairo library was identified as a culprit/accessory to the lag -- as
> some users reported downgrading to a previous libcairo fixes the ruler lag.
>
> However, it also appears to have been properly fixed as of mid-August:
> https://bugzilla.gnome.org/show_bug.cgi?id=736411#c39
> 
>

Thanks Richard, but it seems all OK are to windows... on my linux box the
problem is resolved only without rulers.

I work only on linux, and in this box I've two GIMP, the stable 2.8.14
(otto ppa) and and the 2.9 devel (last git master). My box is ubuntu gnome
14.04.2 - 64-bit. Memory 8Gb, Intel® Core™ i5-3570K CPU @ 3.40GHz × 4,
Gallium 0.4 on AMD CAICOS.

The 2.9 first of the patch of Michael Henning in August 11, was working
well with the rulers.
The 2.8.14 stable - ppa otto, is working well.

git log on my 2.9 git master >

commit 72617e42b426e6788c075539a20df7365d2cf102
Author: Michael Henning 
Date:   Tue Aug 11 16:20:59 2015 -0400

Bug 736411 - Ruler updates cause slowdown when painting

We now avoid drawing rulers in the position property setter and use
gtk's region invalidation instead. Previously, we were basically
redrawing the ruler inside the mouse event handler, which is pure evil.

thanks
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Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Richard]

IIRC, this was previously discussed on the mailing list (and bugzilla) and the 
cairo library was identified as a culprit/accessory to the lag -- as some users 
reported downgrading to a previous libcairo fixes the ruler lag.

However, it also appears to have been properly fixed as of mid-August:
https://bugzilla.gnome.org/show_bug.cgi?id=736411#c39

-- Stratadrake
strata_ran...@hotmail.com

Numbers may not lie, but neither do they tell the whole truth.


> From: jag.rabi...@gmail.com
> Date: Sun, 6 Sep 2015 14:16:26 -0300
> To: dra...@darkrefraction.com
> CC: gimp-developer-list@gnome.org
> Subject: Re: [Gimp-developer] Brush + Paint Dynamic - performance problems 
> and comparison between 2.9 and 2.8.14.
> 
> Michael is necessary write a bug report?
> Thanks
> 
> On Sat, Sep 5, 2015 at 3:30 PM, Americo Gobbo  wrote:
> 
> >
> > On Sat, Sep 5, 2015 at 2:55 PM, Michael Henning  > > wrote:
> >
> >> Does this issue clear up if you disable the rulers (by unchecking View ->
> >> Show Rulers)? If so, it's probably my fault.
> >
> >
> > Yes, without rulers works fine!
> >
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Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Americo Gobbo]

Michael is necessary write a bug report?
Thanks

On Sat, Sep 5, 2015 at 3:30 PM, Americo Gobbo  wrote:

>
> On Sat, Sep 5, 2015 at 2:55 PM, Michael Henning  > wrote:
>
>> Does this issue clear up if you disable the rulers (by unchecking View ->
>> Show Rulers)? If so, it's probably my fault.
>
>
> Yes, without rulers works fine!
>
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Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Americo Gobbo]

On Sat, Sep 5, 2015 at 2:55 PM, Michael Henning 
wrote:

> Does this issue clear up if you disable the rulers (by unchecking View ->
> Show Rulers)? If so, it's probably my fault.


Yes, without rulers works fine!
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Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Michael Henning]

Does this issue clear up if you disable the rulers (by unchecking View ->
Show Rulers)? If so, it's probably my fault.

From,
   drawoc

On Fri, Sep 4, 2015 at 8:55 PM, Americo Gobbo  wrote:

> On Fri, Sep 4, 2015 at 9:45 PM, Americo Gobbo 
> wrote:
>
> > The short video with GIMP 2.9
> > https://youtu.be/_a4kchvSAvw
> >
>
> Problems with the video... now is OK, see the new:
> https://youtu.be/3hEzQO5mp_g
>
> Sorry ;-)
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Re: [Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Americo Gobbo]

On Fri, Sep 4, 2015 at 9:45 PM, Americo Gobbo  wrote:

> The short video with GIMP 2.9
> https://youtu.be/_a4kchvSAvw
>

Problems with the video... now is OK, see the new:
https://youtu.be/3hEzQO5mp_g

Sorry ;-)
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[Gimp-developer] Brush + Paint Dynamic - performance problems and comparison between 2.9 and 2.8.14.

[Americo Gobbo]

Hi all,
I've noted yesterday that something is changed on the behaviour of brushes
with GIMP 2.9 - last git master commit 0593eaa. The brush stroke with a
paint dynamic or not the stroke it is delaying in heavy way.
I've made two videos to make a comparison with same conditions - same brush
and paint dynamics.

My box is ubuntu gnome 14.04.2 - 64-bit.
Memory 8Gb, Intel® Core™ i5-3570K CPU @ 3.40GHz × 4, Gallium 0.4 on AMD
CAICOS.

---
The short video with GIMP 2.8
https://youtu.be/hP7qH02Ohhw

The short video with GIMP 2.9
https://youtu.be/_a4kchvSAvw

---
Thanks
americo
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