SUMMARY I've been downloading a rather big file(1.9GB) in Firefox with the plasma integration at a speed cca 200Kb/s. From the beginning the notification visualization (blue circle) was spinning like wild and started to eat up CPU. When i opened the notifications settings and unticked the "Track file transfers and other jobs" option the notification icon went away and CPU usage dropped. STEPS TO REPRODUCE 1. Download large file via Firefox with Plasma Integration OBSERVED RESULT Download was working ok, notification as well. But the animation was too fast and there was very high CPU usage EXPECTED RESULT Regular speed animation Little CPU usage SOFTWARE/OS VERSIONS Linux/KDE Plasma: Archlinux (available in About System) KDE Plasma Version: 5.15.5 KDE Frameworks Version: 5.58.0 Qt Version: 5.2.3 ADDITIONAL INFORMATION
What process was using all the CPU?
It is plasmashell process. This also happens when connecting to wireless network etc.
New information was added with comment #2; changing status for inspection.
plasmashell process also causes high cpu usage when the weather report widget placed on desktop shows an animation while the weather information is updated. Operating System: Arch Linux KDE Plasma Version: 5.17.3 KDE Frameworks Version: 5.64.0 Qt Version: 5.13.2
Animations use less CPU load now. Can you check again in Plasma 5.21? Unfortunately if it's still happening, there might not be much we can do about it, as it would be a sign of the GPU not being powerful enough and asking to offload work to the CPU, which will of course increase the CPU load.
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
Tested today, for example when connecting to wifi, the circle animation on system tray spins very fast. 100% cpu usage (one core). This does not happen in wayland.
What Plasma version are you using now? Are you using NVIDIA GPU hardware with the proprietary driver? If so, this may be the same as Bug 419421.
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!