Bug 19421 - CPU load of cores fluctuating heavily
Summary: CPU load of cores fluctuating heavily
Status: RESOLVED OLD
Alias: None
Product: Mageia
Classification: Unclassified
Component: RPM Packages (show other bugs)
Version: Cauldron
Hardware: All Linux
Priority: Normal normal
Target Milestone: ---
Assignee: GNOME maintainers
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-09-20 09:47 CEST by Hartmut Schulze
Modified: 2020-04-11 11:24 CEST (History)
2 users (show)

See Also:
Source RPM:
CVE:
Status comment:

Attachments
Screenshot of cpu-load (68.62 KB, image/png)
2016-09-20 09:48 CEST, Hartmut Schulze 		Details
Process tab (171.72 KB, image/png)
2016-09-20 11:35 CEST, Hartmut Schulze 		Details
TOP (127.71 KB, image/png)
2016-09-20 11:37 CEST, Hartmut Schulze 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Description Hartmut Schulze 2016-09-20 09:47:38 CEST 
Description of problem:

Cauldron with Gnome.

The load of each cpu-core  changes extremly:
example cpu0 at high (max) - then cpu1 at low (min)
wheras cpu2 and cpu3 running normal


Version-Release number of selected component (if applicable):


How reproducible: yes


Steps to Reproduce:
1. start Gnome-System-Monitor
2. Output like attatched Picture?
3.

On the same machine Manjaro runs,
Gnome, and the cpu-load of each core runs absolutely parallel at low level
Comment 1 Hartmut Schulze 2016-09-20 09:48:23 CEST 
Created attachment 8428 [details]
Screenshot of cpu-load
Comment 2 Samuel Verschelde 2016-09-20 10:09:37 CEST 
Can you identify the processes that use the CPU (using top in console for example)?
Comment 3 Hartmut Schulze 2016-09-20 11:35:49 CEST 
Created attachment 8433 [details]
Process tab
Comment 4 Hartmut Schulze 2016-09-20 11:37:31 CEST 
Created attachment 8434 [details]
TOP
Comment 5 Marja Van Waes 2016-09-21 17:26:33 CEST 
(In reply to Hartmut Schulze from comment #4)
> Created attachment 8434 [details]
> TOP

99% for gnome-setting-whatever

CC: (none) => marja11
Assignee: bugsquad => gnome

Comment 6 Olav Vitters 2016-09-22 10:31:53 CEST 
I was asked to upgrade GNOME to 3.22.0 form 3.20.x. This takes a while. There will be various more bugs.

CC: (none) => olav

Comment 7 Hartmut Schulze 2016-09-23 06:38:56 CEST 
(In reply to Olav Vitters from comment #6)
> I was asked to upgrade GNOME to 3.22.0 form 3.20.x. This takes a while.
> There will be various more bugs.

Let us consider the bug is related to the cpu-scheduler.
Windows uses the "idele-task", there seems to be no process
like this in my Cauldron?

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Performance_Tuning_Guide/s-cpu-scheduler.html
Comment 8 Hartmut Schulze 2016-09-24 17:16:18 CEST 
(In reply to Marja van Waes from comment #5)
> (In reply to Hartmut Schulze from comment #4)
> > Created attachment 8434 [details]
> > TOP
> 
> 99% for gnome-setting-whatever

If this is a bug of the cpu scheduler ->
in actual manjaro release (gnome too) its solved,
I don´t know how anyway.....
Comment 9 Olav Vitters 2020-04-11 11:24:30 CEST 
Garr, completely forgot to push stable updates. I'm pretty sure this was fixed meanwhile.

Related, Mageia could use more GNOME packagers!

Status: NEW => RESOLVED
Resolution: (none) => OLD
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