Bug 408888 - Regression in 5.16: plasma process constantly consumes 10% CPU
Summary: Regression in 5.16: plasma process constantly consumes 10% CPU
Status: RESOLVED NOT A BUG
Alias: None
Product: plasmashell
Classification: Plasma
Component: general (other bugs)
Version First Reported In: 5.16.1
Platform: Neon Linux
: NOR normal
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-06-18 22:56 UTC by Komorebi
Modified: 2019-06-19 00:15 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

Attachments
Task manager screenshot (6.10 KB, image/png)
2019-06-18 22:56 UTC, Komorebi 		Details
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Description Komorebi 2019-06-18 22:56:33 UTC 
Created attachment 120988 [details]
Task manager screenshot

SUMMARY


STEPS TO REPRODUCE
1. Run plasma and wait for some time. I'm not sure what triggers it.  

OBSERVED RESULT
10% CPU load on plasmashell

EXPECTED RESULT
CPU is not used while idle


SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.16
KDE Plasma Version: 5.16.1
KDE Frameworks Version: 5.59.0
Qt Version: 5.12.3
Kernel Version: 4.18.0-22-generic
OS Type: 64-bit
Processors: 4 × Intel® Core™ i3-3225 CPU @ 3.30GHz
Memory: 23,5 GiB of RAM
Radeon RX 550 Series (POLARIS12, DRM 3.26.0, 4.18.0-22-generic, LLVM 7.0.0)s
Comment 1 Komorebi 2019-06-19 00:15:53 UTC 
I found that the problem is caused by event calendar, the agenda was constantly scrolling up and down without any reason which caused a lot of repaints and CPU usage as result.