https://bugs.kde.org/show_bug.cgi?id=445270
Bug ID: 445270
Summary: History page makes the whole desktop laggy (wayland)
Product: plasma-systemmonitor
Version: 5.23.2
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: ksysguard-b...@kde.org
Reporter: francoisprun...@hotmail.com
CC: ahiems...@heimr.nl, plasma-b...@kde.org
Target Milestone: ---
SUMMARY
Having the history page opened inside system monitor is making the whole
desktop laggy, whether it is shown or not
STEPS TO REPRODUCE
1. Open system monitor under a wayland session
2. Display the 'History' view
OBSERVED RESULT
FPS drop from 60fps to < 30fps, make firefox scrolling laggy, even the mouse
pointer
EXPECTED RESULT
SOFTWARE/OS VERSIONS
Kubuntu 21.10 with backports PPA
KDE Plasma Version: 5.23.2
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
It happens whether the app is running in the background or not, all the other
pages do not show this behavior, so it's probably related the graph code. My
machine is using an intel processor with the integrated GPU (HD graphics 4600).
It gets a little bit better if I change the minimum time between updates to 2s
but it's still laggy
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