Bug 260029 - sysutils/plasma5-plasma-systemmonitor System Monitor 5.23.2 excessive use of CPU
Summary: sysutils/plasma5-plasma-systemmonitor System Monitor 5.23.2 excessive use of CPU
Status: New
Alias: None
Product: Ports & Packages
Classification: Unclassified
Component: Individual Port(s) (show other bugs)
Version: Latest
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-kde (group)
URL: https://forums.freebsd.org/posts/543488
Keywords:
Depends on:
Blocks:
 
Reported: 2021-11-24 18:09 UTC by Graham Perrin
Modified: 2022-08-28 13:58 UTC (History)
0 users

See Also:
bugzilla: maintainer-feedback? (kde)

Attachments
Screenshot: 98% (322.99 KB, image/png)
2021-11-24 18:09 UTC, Graham Perrin 		no flags Details
screenshot: 100% after removing everything (245.22 KB, image/png)
2021-11-25 23:29 UTC, Graham Perrin 		no flags Details
Screenshot: Processes tab (288.94 KB, image/png)
2022-08-28 13:57 UTC, Graham Perrin 		no flags Details
Screenshot: Overview tab (261.02 KB, image/png)
2022-08-28 13:58 UTC, Graham Perrin 		no flags Details
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Description Graham Perrin freebsd_committer freebsd_triage 2021-11-24 18:09:25 UTC 
Created attachment 229707 [details]
Screenshot: 98%

Shortly after launch, CPU usage by the application rises to 100% (measured by htop) with occasional minor drops. 

% uname -aKU
FreeBSD mowa219-gjp4-8570p-freebsd 14.0-CURRENT FreeBSD 14.0-CURRENT #115 main-n250650-ef396441ceb: Sat Nov 13 23:52:09 GMT 2021     root@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG  amd64 1400041 1400041
%
Comment 1 Graham Perrin freebsd_committer freebsd_triage 2021-11-25 23:29:09 UTC 
Created attachment 229731 [details]
screenshot: 100% after removing everything

For a while, it seemed that excessive usage occurred only when the Overview tab was active. 

Whenever I clicked the History tab, usage dropped. Then whenever I reviewed the Overview, usage skyrocketed to 100%; as if viewing History was a workaround. 

After removing everything from the Overview tab, usage no longer dropped when History was viewed. 

After removing/hiding _everything_, usage remained excessive. 

Attached: a screenshot from near the end of a 7.9 MiB screen recording.
Comment 2 Graham Perrin freebsd_committer freebsd_triage 2021-11-26 00:04:46 UTC 
(In reply to Graham Perrin from comment #0)

> … 14.0-CURRENT …

Around thirty percent (less excessive) reported by a user of 13.0-RELEASE at and under <https://forums.freebsd.org/posts/543488>.
Comment 3 Graham Perrin freebsd_committer freebsd_triage 2022-08-28 13:57:23 UTC 
Created attachment 236179 [details]
Screenshot: Processes tab

plasma5-plasma-systemmonitor-5.24.6 not using excessive CPU. 

Operating System: FreeBSD 14.0
KDE Plasma Version: 5.24.6
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.5
Kernel Version: 14.0-CURRENT (64-bit)
Graphics Platform: X11
Memory: 15.9 GiB of RAM
Graphics Processor: AMD TURKS

% uname -aKU
FreeBSD mowa219-gjp4-8570p-freebsd 14.0-CURRENT FreeBSD 14.0-CURRENT #19 main-n257401-82493ff7007a: Tue Aug 16 05:16:20 BST 2022     grahamperrin@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG amd64 1400065 1400065
%
Comment 4 Graham Perrin freebsd_committer freebsd_triage 2022-08-28 13:58:33 UTC 
Created attachment 236180 [details]
Screenshot: Overview tab