https://bugs.kde.org/show_bug.cgi?id=398699
Bug ID: 398699
Summary: File copy or even download indicator cause 100% CPU
load
Product: plasmashell
Version: 5.13.4
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: Application Menu (Kicker)
Assignee: h...@kde.org
Reporter: kdeb...@customcdrom.de
CC: plasma-b...@kde.org
Target Milestone: 1.0
Created attachment 114997
--> https://bugs.kde.org/attachment.cgi?id=114997&action=edit
Xorg log
(I tried to find already existing reports referring to the observed problem,
but could not find any. I attached my Xorg.0.log for details. System is a, in
comparison still not-that-slow, 3.0 GHz Intel Core i7 3540M. OpenGL and 3D
effects are enabled and run smoothly.)
As soon as plasmashell shows an indicator for an ongoing copy or even download
operation, using the spinning circle, the CPU load goes up to nearly 100% on
one core, split between the plasmashell and the Xorg processes.
This seems to indicate an overly large and frequent amount of repaint requests
being made, possibly for the spinning indicator.
It's sufficient to download a larger file using Chrome via a slow internet
connection (I'm currently on a slow mobile link during this weekend.) and the
load will go to 100%, even though the download is just drippling / sometimes
even stalled for several seconds.
I'd assume updating the indicator 25 or 30 times a second would be more than
enough for a smooth animation, so why the high load?
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