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List:       kde-bugs-dist
Subject:    [plasmashell] [Bug 378010] Generic High CPU Usage Rendering
From:       <bugzilla_noreply () kde ! org>
Date:       2017-09-06 11:48:18
Message-ID: bug-378010-17878-LIb2kfOjHR () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=378010

--- Comment #55 from flyos@mailoo.org ---
Adding a comment here rather than opening a new bug, as I think this a
duplicate of what is discussed here.

I noticed that sometimes I have a mild, but constant, CPU usage of kwin_x11. I
opened a post on Reddit about that and M. Gräßlin advised me to open a bug
report about it against plasmashell:
https://www.reddit.com/r/kde/comments/6wpvmr/kwin_is_always_the_top_of_top_cpu_usage/

Using his advice, I can confirm this high CPU usage of kwin_x11 is always
linked to a constant and rapid repaint of plasmashell. What triggers this
repaint is unknown to me. I suspected the Comics plasmoid, but I just had this
exact behaviour even though I removed it and now only have "Folder View"
plasmoids. 

One thing I noticed though, it that this repaint is very similar to the one I
get when the Comics plasmoid was updating the content with the "circling
animation". This triggered a repaint of the whole plasmashell.

Sorry for this not very precise bug report, I did my best to pinpoint the
origin of this, without success. I can provide more information with enough
guidance. This is openSUSE Tumbleweed with Plasma 5.10.5.

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