[Xfce-bugs] [Bug 15309] High CPU usage when moving the mouse cursor

[bugzilla-daemon at xfce.org]

https://bugzilla.xfce.org/show_bug.cgi?id=15309

Öyvind Saether <oyvinds at everdot.org> changed:

           What    |Removed                     |Added
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                 CC|                            |oyvinds at everdot.org

--- Comment #5 from Öyvind Saether <oyvinds at everdot.org> ---
On AMD E1-6010 (AMD Mullins 1.4GHz Dual-Core) with Xfce XFWM4 v4.13.1 with
compositing ON on Fedora 30 beta I found that

- Booting into Xfce & opening a terminal with top has Xorg using 4%.
- Moving the mouse in circles above xfdesktop brings Xorg up to 10.5% and
xfdesktop to 10%.
- Opening thunar and moving the mouse in circles above the file list area
brings Xorg to 30% and Thunar to 15% CPU usage. This seems high.
- Moving the mouse in circles above empty space below the
devices/places/network left side-bar area has CPU usage at 9% for Xorg and 4%
for thunar
- Moving the mouse in circles above the populated part of the sidebar and the
icon toolbar brings CPU to to 40% for Xorg and 25% for thunar

For comparison, playing APink's %% musicvideo coded as x264 at 720p with mpv
using vaapi hardware decoding & terminal window with top above that has Xorg
using 20% and mpv 15% CPU. That's less CPU used than what's used when moving
the mouse in circles above the top part of the sidebar and the icon toolbar.

I typed dnf -y update on that slow old outdated laptop which was weak to begin
with so I won't be able to do further testing for hours.

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