Bug 170868

Summary:	'iotop -o' to track kde process' io and improve hd powersaving
Product:	[I don't know] kde	Reporter:	Bráulio Barros de Oliveira <brauliobo>
Component:	general	Assignee:	Unassigned bugs mailing-list <unassigned-bugs>
Status:	RESOLVED LATER
Severity:	normal	CC:	mumismo, nate
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:

Description Bráulio Barros de Oliveira 2008-09-11 18:09:14 UTC

Version:           unknown (using 4.1.65 (KDE 4.1.65 (KDE 4.2 >= 20080903)), compiled sources)
Compiler:          gcc
OS:                Linux (x86_64) release 2.6.26-ARCH

hello folks

i'm using 'iotop -o' to track the KDE process which are doing hd access with no user interface interaction, which probably indicates waste of power.

according to my results these kde process were the ones which most had shown this behaviour:
knotify4
kde4
kwin
(sometimes konsole)

if you have set APM for your hd, you'll probably hear many HD clicks which are the result of pdflush writing to disk as process had asked for it. 'hdparm -B 128 /dev/sda' will set it.

could someone cc these to the process' respectives mailing lists?

regards

Comment 1 Bráulio Barros de Oliveira 2008-09-11 18:10:04 UTC

*** Bug 170432 has been marked as a duplicate of this bug. ***

Comment 2 Jordi Polo 2008-11-27 08:04:20 UTC

I wonder if this is more of a general optimization issue or should be moved to powerdevil?

Comment 3 Andrew Crouthamel 2018-11-02 04:23:16 UTC

Dear Bug Submitter,

This bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? I am setting the status to NEEDSINFO pending your response, please change the Status back to REPORTED when you respond.

Thank you for helping us make KDE software even better for everyone!

Comment 4 Andrew Crouthamel 2018-11-16 02:49:30 UTC

Dear Bug Submitter,

This is a reminder that this bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version?

Thank you for helping us make KDE software even better for everyone!

Comment 5 Nate Graham 2020-09-28 23:39:25 UTC

No response. FWIW there's an effort to prioritize the foreground app using systemd slices and cgroups. I expect the work to fully land in Plasma 5.21.