https://bugs.kde.org/show_bug.cgi?id=444001
Bug ID: 444001
Summary: Performance stagger in animation and rendering when
hovering over grouped Icons-Only Task Manager; given
that the grouped windows contain more than 3-5
windows.
Product: plasmashell
Version: master
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: Task Manager and Icons-Only Task Manager
Assignee: h...@kde.org
Reporter: thomwalker...@mail.com
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY
When having more than 3-5 windows (of the same type) open on the taskbar and
they get grouped together [such as 15 firefox windows minimized]...
...shine hover animation becomes evidently and noticeably impacted framerate
wise and the cursor, as well as the icon itself starts to stagger.
STEPS TO REPRODUCE
1. Open 10, 20 or more windows of the same program (in my case, it was firefox)
2. Let them group.
3. While having other running programs, attempt to hover left and right between
each and observe what happens when going over the program with lots of grouped
windows.
OBSERVED RESULT
Slow, staggered animation, possibly even slowed cursor?
Unnatural animation transition.
Becomes an annoyance when working with multiple windows.
EXPECTED RESULT
Smooth animation transition between icons on the taskbar without staggering.
SOFTWARE/OS VERSIONS
OS: Manjaro Linux x86_64
Host: TUF Gaming FX505DY_FX505DY 1.0
Kernel: 5.13.19-2-MANJARO
Uptime: 3 hours, 23 mins
Packages: 1548 (pacman), 4 (flatpak)
Shell: bash 5.1.8
Resolution: 1920x1080
DE: Plasma 5.22.5
WM: KWin
Theme: Breath2 2021 Light [Plasma], Breeze [GTK2/3]
Icons: [Plasma], breath2 [GTK2/3]
Terminal: konsole
CPU: AMD Ryzen 5 3550H with Radeon Vega Mobile Gfx (8) @ 2.100GHz
GPU: AMD ATI 05:00.0 Picasso
GPU: AMD ATI Radeon RX 460/560D / Pro 450/455/460/555/555X/560/560X
Memory: 11126MiB / 15688MiB
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
Compositor is off/disabled.
GPU drivers are installed.
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