Bug 406837

Summary:	Kwin_wayland takes a whole CPu core when Kmail is open
Product:	[Plasma] kwin	Reporter:	tromzy
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version First Reported In:	5.15.4
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description tromzy 2019-04-24 09:30:52 UTC

SUMMARY
On a Wayland session, I noticed that Kwin_wayland is running between 18 and 25% CPU usage (a whole core)  when Kmail is open (even minimized). Kmail and MySQL also take a lot of CPU but that's probbly unrelated.

STEPS TO REPRODUCE
1. Open a Plasma Wayland session
2. Run Kmail
3. 

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.15.4
KDE Frameworks Version: 5.57
Qt Version: 5.12.3

ADDITIONAL INFORMATION
Arch Linux

Comment 1 tromzy 2020-10-16 17:00:48 UTC

Fixed (for a while I think).