https://bugs.kde.org/show_bug.cgi?id=458039
Bug ID: 458039
Summary: Unusual and continuous CPU(And probably also GPU)
usage by Plasmashell and Kwin processes
Product: plasmashell
Version: master
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: generic-performance
Assignee: plasma-b...@kde.org
Reporter: behzad.a...@hotmail.com
Target Milestone: 1.0
Last Sunday, after updating Plasma to the last git-master(openSUSE Krypton repo
22-08-14), I noticed unusual and continuous CPU(And probably also GPU) usage by
Plasmashell and Kwin_wayland processes in the Wayland session, And in the X11
session, in addition to them, the Xorg-bin process is also involved, So that
even when just running Top through Konsole, in Wayland session, CPU usage of
Plasmashell and Kwin_wayland processes is about 7-8%, and in X11 session, CPU
usage of Plasmashell and Kwin_x11 and Xorg-bin processes is about 10-12%, And
it also seems that something constantly and without reason render/draw/repaint
ing in the background, because seems that "kworker/u9:1+i915_flip" process is
also involved.
Also, I had not seen this problem before the last update.
System:
Host: localhost.localdomain Kernel: 5.19.1-1-default arch: x86_64 bits: 64
compiler: gcc v: 12.1.1 Desktop: KDE Plasma v: 5.25.80 tk: Qt v: 5.15.5
wm: kwin_wayland dm: SDDM Distro: openSUSE Tumbleweed 20220816
CPU:
Info: dual core model: Intel Core2 Duo T6670 bits: 64 type: MCP
arch: Penryn Yorkfield rev: A cache: L1: 128 KiB L2: 2 MiB
Speed (MHz): avg: 1196 min/max: 1200/2201 boost: enabled cores: 1: 1196
2: 1196 bogomips: 8770
Flags: ht lm nx pae sse sse2 sse3 sse4_1 ssse3 vmx
Graphics:
Device-1: Intel Mobile 4 Series Integrated Graphics vendor: Sony
driver: i915 v: kernel arch: Gen5 ports: active: LVDS-1 empty: DP-1,VGA-1
bus-ID: 00:02.0 chip-ID: 8086:2a42
Device-2: Ricoh Sony Vaio Integrated Webcam type: USB driver: uvcvideo
bus-ID: 2-2:2 chip-ID: 05ca:18b3
Display: wayland server: X.org v: 1.21.1.4 with: Xwayland v: 22.1.3
compositor: kwin_wayland driver: X: loaded: modesetting
unloaded: fbdev,vesa alternate: intel gpu: i915 display-ID: 0
Monitor-1: LVDS-1 res: 1280x800 size: N/A
OpenGL: renderer: Mesa Mobile Intel GM45 Express (CTG)
v: 2.1 Mesa 22.3.0-devel-git-5fd8ae15 direct render: Yes
"qdbus-qt5 org.kde.KWin /KWin supportInformation" Output:
https://pastebin.com/BZRnrVHp
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