[kdenlive] [Bug 377859] High CPU usage while idle.

[Gregor Mi]

https://bugs.kde.org/show_bug.cgi?id=377859

Gregor Mi  changed:

   What|Removed |Added

 Status|RESOLVED|CLOSED
 CC||codestr...@posteo.org

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377859

Christoph Feck  changed:

   What|Removed |Added

 CC||kai...@kailed.net

--- Comment #15 from Christoph Feck  ---
*** Bug 386919 has been marked as a duplicate of this bug. ***

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377859

Christoph Feck  changed:

   What|Removed |Added

 CC||kdeb...@mailismagic.com

--- Comment #14 from Christoph Feck  ---
*** Bug 386773 has been marked as a duplicate of this bug. ***

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[kdenlive] [Bug 377859] High CPU usage while idle.

[David Faure]

https://bugs.kde.org/show_bug.cgi?id=377859

David Faure  changed:

   What|Removed |Added

  Latest Commit|https://commits.kde.org/kxm |https://commits.kde.org/kwi
   |lgui/ba889143d684326f0b8b19 |dgetsaddons/c6191993c7e5ea4
   |88ea12073c95cc8ffe  |873f0635a6fac79773c9cb96c

--- Comment #13 from David Faure  ---
Git commit c6191993c7e5ea4873f0635a6fac79773c9cb96c by David Faure.
Committed on 07/10/2017 at 16:29.
Pushed by dfaure into branch 'master'.

KAcceleratorManager: set icon text on actions to remove CJK markers

Summary:
This replaces the KToolBar event filter hack to solve the same issue:
when an action text appears in a menu we want the & accelerator, while in
toolbars wewant that removed. Qt takes care of it, except for the more tricky
case of CJK markers: " ()" where  exists only to get an ascii
accelerator.
Instead of hacking the text at painting time (!) it's much more robust to
remove " ()" from action texts and sett hat as the icon text upfront.

With this in, we can remove the KToolBar hack which leads to endless repaints.
Related: bug 365050

Test Plan: Unittest

Reviewers: mardelle, ilic, sandsmark

Subscribers: #frameworks

Differential Revision: https://phabricator.kde.org/D7964

M  +31   -6autotests/kacceleratormanagertest.cpp
M  +1-0src/CMakeLists.txt
A  +106  -0src/common_helpers.cpp [License: LGPL (v2+)]
A  +46   -0src/common_helpers_p.h [License: LGPL (v2+)]
M  +21   -0src/kacceleratormanager.cpp

https://commits.kde.org/kwidgetsaddons/c6191993c7e5ea4873f0635a6fac79773c9cb96c

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Jean-Baptiste Mardelle]

https://bugs.kde.org/show_bug.cgi?id=377859

Jean-Baptiste Mardelle  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|CONFIRMED   |RESOLVED
  Latest Commit||https://commits.kde.org/kxm
   ||lgui/ba889143d684326f0b8b19
   ||88ea12073c95cc8ffe

--- Comment #12 from Jean-Baptiste Mardelle  ---
Git commit ba889143d684326f0b8b1988ea12073c95cc8ffe by Jean-Baptiste Mardelle.
Committed on 06/10/2017 at 06:07.
Pushed by mardelle into branch 'master'.

Fix KToolBar repaint loop
Related: bug 365050
Differential Revision: https://phabricator.kde.org/D7954

M  +10   -4src/ktoolbar.cpp

https://commits.kde.org/kxmlgui/ba889143d684326f0b8b1988ea12073c95cc8ffe

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Simon Andric]

https://bugs.kde.org/show_bug.cgi?id=377859

Simon Andric  changed:

   What|Removed |Added

 CC||simonandr...@gmail.com

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Jean-Baptiste Mardelle]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #11 from Jean-Baptiste Mardelle  ---
Confirmed, issue in KDE Frameworks, patch pending:
https://phabricator.kde.org/D7954

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #10 from Christoph Feck  ---
Comment #7 was using Qt 5.9.1.

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Jean-Baptiste Mardelle]

https://bugs.kde.org/show_bug.cgi?id=377859

Jean-Baptiste Mardelle  changed:

   What|Removed |Added

 Ever confirmed|0   |1
 Status|UNCONFIRMED |CONFIRMED

--- Comment #8 from Jean-Baptiste Mardelle  ---
I can confirm the issue. Wondering if that could be related to the Qt version
(5.7.0) used for the build.. I am investigating...

--- Comment #9 from Jean-Baptiste Mardelle  ---
I can confirm the issue. Wondering if that could be related to the Qt version
(5.7.0) used for the build. My main build using Qt 5.7.1 does not have this
problem. I am investigating...

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Jean-Baptiste Mardelle]

https://bugs.kde.org/show_bug.cgi?id=377859

Jean-Baptiste Mardelle  changed:

   What|Removed |Added

 Ever confirmed|0   |1
 Status|UNCONFIRMED |CONFIRMED

--- Comment #8 from Jean-Baptiste Mardelle  ---
I can confirm the issue. Wondering if that could be related to the Qt version
(5.7.0) used for the build.. I am investigating...

--- Comment #9 from Jean-Baptiste Mardelle  ---
I can confirm the issue. Wondering if that could be related to the Qt version
(5.7.0) used for the build. My main build using Qt 5.7.1 does not have this
problem. I am investigating...

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[kdenlive] [Bug 377859] High CPU usage while idle.

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #7 from Christoph Feck  ---
Yes, using version fdbbf2127 I see the same behavior. As long as the main
window is active, I have constant 25% CPU usage.

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[kdenlive] [Bug 377859] High CPU usage while idle.

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #6 from skoupad-bugzi...@yahoo.com ---
Additional info:

I've just tried kdenlive-alpha1-17.12 AppImage (In the About window says:
version 17.11.70) and I see the same behavior. Giving focus to the main window
increases the CPU usage. Giving focus anywhere else (even on another Kdenlive
window), the CPU returns to normal. Does anyone else see this behavior?

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[kdenlive] [Bug 377859] High CPU usage while idle.

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #5 from skoupad-bugzi...@yahoo.com ---
Created attachment 107950
  --> https://bugs.kde.org/attachment.cgi?id=107950=edit
CPU usage

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[kdenlive] [Bug 377859] High CPU usage while idle.

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #4 from skoupad-bugzi...@yahoo.com ---
Created attachment 107949
  --> https://bugs.kde.org/attachment.cgi?id=107949=edit
CPU usage

Giving focus to the main window increases the CPU usage.

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[kdenlive] [Bug 377859] High CPU usage while idle.

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #3 from skoupad-bugzi...@yahoo.com ---
Additional info:

 I've just updated to Debian 9. Unfortunately the problem is still here. I was
hopping that with a new clean install (and updated software) that the problem
will go away. I have tested the Appimage version 17.04.1b on a clean Debian 9
fresh installation without changing anything. When I first run Kdenlive the CPU
usage goes to 30%. That is with the Audio driver setting set to Automatic. If I
change it to PulseAudio the CPU drops to 10%. If I add a video file the CPU
usage raises up a bit. Without the video playing and without adding any filters
or effects. And if I close Kdenlive completely the CPU usage returns to normal.

 I have also noticed that if I open the settings window (Settings > Configure
Kdenlive) the CPU usage returns to normal. In fact if the focus is anywhere
else than the main window of Kdenlive (for ex. in a Nautilus window) the
problem goes away. If I click back to the main Kdenlive window to give it the
focus then the problem is back. (Except with the Audio driver setting set to
Automatic. In that case the CPU remains high).

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[kdenlive] [Bug 377859] High CPU usage while idle.

[francisco_t]

https://bugs.kde.org/show_bug.cgi?id=377859

francisco_t  changed:

   What|Removed |Added

 CC||leviat...@gmx.com

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[kdenlive] [Bug 377859] High CPU usage while idle.

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #2 from skoupad-bugzi...@yahoo.com ---
Additional info:

As I suspected, the problem is most likely related to pulseaudio. Searching for
a solution I stumbled across some bug reports on various distros that suggested
to try inserting the following line to /etc/pulse/default.pa :

load-module module-udev-detect tsched = 0

This indeed fixed the problem. But it messes up gnome sound so I can't use this
solution. To my understanding the issue has to do with some problems in the
alsa drivers and pulseaudio scheduler. Debian 8 uses an old version of
pulseaudio and Debian 9 is just around the corner. Maybe the bug is fixed in
the newer versions of pulseaudio. So, I don't know if this is actually a
Kdenlive bug.

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[kdenlive] [Bug 377859] High CPU usage while idle.

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=377859

--- Comment #1 from skoupad-bugzi...@yahoo.com ---
Additional info:

I think the bug has to do with the sound settings. By default the Kdenlive
Appimage comes configured with "Audio driver: Automatic".

If I set it to "Audio driver: OSS" I see significantly less CPU usage.

Logically it shouldn't have any CPU usage on a newly started project that has
no files in it (why process sound that isn't there?).

Another thought that crossed my mind is that it may be pulseaudio that is the
problem. I've read many cases on the internet (with various programs) about
pulseaudio using CPU excessively.

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