https://bugs.kde.org/show_bug.cgi?id=380800
Bug ID: 380800
Summary: High CPU usage with 'Destkop Effects' enabled
Product: kwin
Version: 5.9.5
Platform: Fedora RPMs
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: net...@crc.id.au
Target Milestone: ---
This output of 'top' is grabbed from just moving the mouse around over the top
of the system settings dialog.
top - 12:28:24 up 2 min, 2 users, load average: 0.67, 0.28, 0.10
Tasks: 287 total, 2 running, 284 sleeping, 0 stopped, 1 zombie
%Cpu(s): 9.7 us, 3.0 sy, 0.0 ni, 87.0 id, 0.0 wa, 0.2 hi, 0.2 si, 0.0 st
KiB Mem : 10228404 total, 8320700 free, 1099032 used, 808672 buff/cache
KiB Swap: 5181436 total, 5181436 free, 0 used. 8807936 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1861 netwiz 20 0 988516 154128 92760 R 49.2 1.5 0:16.39
systemsettings5
988 root 20 0 291872 70384 44240 S 23.3 0.7 0:15.02 Xorg
1318 netwiz 20 0 3365896 141000 87728 S 10.0 1.4 0:15.30 kwin_x11
1333 netwiz 20 0 4571460 420064 159660 S 4.3 4.1 0:12.64 plasmashell
1024 root -51 0 0 0 0 S 1.0 0.0 0:00.64
irq/40-nvidia
8 root 20 0 0 0 0 S 0.3 0.0 0:00.05 rcu_sched
492 root 20 0 0 0 0 S 0.3 0.0 0:00.05
btrfs-transacti
887 root 20 0 789412 18016 15060 S 0.3 0.2 0:00.19
NetworkManager
1885 netwiz 20 0 756992 68836 58156 S 0.3 0.7 0:00.49 konsole
Disabling the desktop effects via "Alt-Shift-F12" will cause this behaviour to
stop immediately.
# rpm -qa | grep kwin | sort
kf5-kwindowsystem-5.34.0-1.fc26.x86_64
kwin-5.9.5-2.fc26.x86_64
kwin-common-5.9.5-2.fc26.x86_64
kwin-libs-5.9.5-2.fc26.x86_64
# rpm -qa | grep nvidia | sort
akmod-nvidia-381.22-2.fc26.x86_64
kmod-nvidia-4.11.3-300.fc26.x86_64-381.22-2.fc26.x86_64
nvidia-driver-381.22-6.fc26.x86_64
nvidia-driver-cuda-libs-381.22-6.fc26.x86_64
nvidia-driver-libs-381.22-6.fc26.x86_64
nvidia-libXNVCtrl-381.22-1.fc26.x86_64
nvidia-settings-381.22-1.fc26.x86_64
Am more than happy to do more debug as required.
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