SUMMARY STEPS TO REPRODUCE 1. Run plasma desktop normally OBSERVED RESULT Frequent (every few minutes) few seconds long episodes of unresponsiveness / near freeze, during which: - plasmashell shows high CPU usage (~12% which is about 1/8 i.e. one thread 100% CPU on an 8-core) - panel is not immediately responsive - panel doesn't redraw (e.g. the network monitor graph isn't refreshing) - after the episode ends, events issued during the episode seem to be processed normally (i.e. if I click a docked application icon on the icon task manager during the episode, the app gets launched after the episode) EXPECTED RESULT Smooth operation of plasmashell. SOFTWARE/OS VERSIONS Linux 5.0.2-arch1-1-ARCH x86_64 GNU/Linux KDE Plasma 5.15.3 KDE Frameworks 5.56.0 Qt 5.12.1
A lot has changed since this bug was filed. Is it still reproducible for you in Plasma 5.24 (the latest LTS version) or 5.25 (the latest version, period)?
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No longer happening. Closing.