Enabling the "Show Paint" effect shows a high number of unneccessary repaints of the left pane of the system settings dialog. I found that while having a look at bug #381000. Please have a look here: https://www.youtube.com/watch?v=TAC14Izfbas https://www.youtube.com/watch?v=-m6D3vi7za4 KDE Frameworks 5.39.0 Qt 5.9.1 (built against 5.9.1)
qml flips the buffers on every repaint, that's a normal behavior, you would see it also in plasmashell and any qml app, even a simple rectangle loaded in qmlshell
Problem is that there was nothing changing, and the app consuming a huge amount of CPU power for effectively a static window.
hmm, not getting any cpu usage from systemsettings when not interacting with systemsettings master and kirigmai master
Me neither.