[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

leozinho29_eu at hotmail.com changed:

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--- Comment #10 from leozinho29_eu at hotmail.com ---
Created attachment 8565
  --> https://bugzilla.xfce.org/attachment.cgi?id=8565&action=edit
Compressed file with backtraces from Mousepad, Thunar and xfdesktop while idle
and moving the mouse

I installed Xfce 4.14 PPA on Xubuntu Disco and am testing it, I have noticed
that moving the mouse does increase CPU load on all programs. The computer I'm
testing now has a Intel Core i3-6100U and Intel HD Graphics 520. 

(The values below are approximated)

htop shows that moving the mouse over a program window increases the program
total CPU load by around 0,8% and Xorg CPU load increases by 0,3% too. This was
noticed on all programs I tested, including programs not exclusive to Xfce4, as
Audacious and Tilix.

While I was able to get a Mousepad backtrace showing its actions while moving
the mouse, the CPU load increase is the "normal" CPU load increase for all
programs.

For xfdesktop, however, the increase is closer to 1,3% CPU load and Xorg load
2%. The gdb backtrackes while the mouse is being moved have data related to the
mouse movement much more often than other programs.

Thunar does have 2% CPU usage if moving the mouse quickly over icons and the
"normal" CPU load when not over icons. Xorg CPU usage increases 0,5% when
moving the mouse over the icons.

I'm unable to find the debug symbols for the Xfce 4.14 PPA debug symbols, which
makes the backtraces a bit incomplete. Where can I find the debug symbols for
the Xfce 4.14 PPA?

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