https://bugs.kde.org/show_bug.cgi?id=443696
Bug ID: 443696
Summary: notices with expire times consume a lot of cpu and
make the desktop unresponsive
Product: plasmashell
Version: 5.22.5
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Notifications
Assignee: k...@privat.broulik.de
Reporter: mich...@actrix.gen.nz
CC: plasma-b...@kde.org
Target Milestone: 1.0
Plasmashell and kwin_x11 consume a lot of CPU if multiple expiring notices are
visible at the same time.
STEPS TO REPRODUCE
1. In a konsole bash shell execute many 20-second notifications:
for i in 1 2 3 4 5 6 7 8 9 10; do notify-send --expire-time 20000 test
$i;done
OBSERVED RESULT
Unresponsive/jerky desktop. High CPU usage. Window dragging is very jerky.
Performance returns to normal as notices expire.
EXPECTED RESULT
No substantial effect on desktop responsiveness or CPU consumption.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: OpenSUSE Tumbleweed 20211005
(available in About System)
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.15.2
Qt Version: 5.15.2
ADDITIONAL INFORMATION
Processors: 6 x AMD-6300
Memory: 15.5 GiB
Graphics Processor: NVIDIA GeForce GTX 1650 SUPER with proprietary driver.
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