You are not logged in.

#1 2018-11-28 19:15:17

this.julian
Member
Registered: 2018-11-28
Posts: 2

Strange usage of CPU (100% one/two of cores) in Thinkpad P70

Hello,

few weeks ago after update something has fcked with my notebook.
When I open monitor, I see that one of the core uses 100%, and then it drops down and another uses 100%. And they are still swaping.
It's drilling my battery (2-3h less work time) and making me frustrated.

Kernel: 4.19.2-arch1-1-ARCH

Process which probably eats my CPU: tracker-store
( tried to turn off it following this advice - https://ask.fedoraproject.org/en/questi … -in-gnome/ )

Screenshot of CPU monitor diagram:

https://imgur.com/a/6dyY2bG

I love to work without cable, so I hope one of You guys will find excellent solution how to solve this issue. I believe in You guys. I will present all necessary info.

Last edited by this.julian (2018-11-28 22:54:46)

Offline

#2 2018-11-28 19:30:38

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 5,677

Re: Strange usage of CPU (100% one/two of cores) in Thinkpad P70

The 4.19 kernel switched to multi-queue IO schedulers. Indexers like tracker or KDE's baloo set an IO-scheduler flag to notify schedulers that they shouldn't prioritize their processes. The current multiqueue default mq-deadline doesn't honor these flags afaik. You can try switching to the BFQ scheduler or disable the mq layer with

scsi_mod.use_blk_mq=0

on your kernel params to revert to the previous scheduler and behaviour, though that approach is considered obsolete and relevant code has been removed from modern kernels (4.20+), so might not be a sustainable solution

Also please edit your post and only post a link or thumbnail to an image https://wiki.archlinux.org/index.php/Co … s_and_code

Last edited by V1del (2018-11-28 19:32:09)

Offline

#3 2018-11-28 23:18:39

this.julian
Member
Registered: 2018-11-28
Posts: 2

Re: Strange usage of CPU (100% one/two of cores) in Thinkpad P70

I tried, but with no success.

Post edited as You wish.

Monitor cheats on usage of CPU probably...
Using "top" command, I got info about tracker-store process:

3595 j         20   0  391684  30852  13444 R  89,7   0,2   0:02.69 tracker-s+
where 89,7 is % usage of CPU.

But I found solution how to solve it:

Copy the autostart file and override it with a user-specific one:

$ cp /etc/xdg/autostart/tracker-store.desktop ~/.config/autostart/tracker-store.desktop

and append to it:

Hidden=true

(The same step also applies for tracker’s friends, such as tracker-miner-fs, etc.)
Mask (which is the strongest yet nondestructive way to “disable” a static systemd service completely [4]) all tracker-related

$ systemctl --user mask tracker-store

Source:
https://www.soimort.org/notes/171103/

Last edited by this.julian (2018-11-28 23:42:53)

Offline

#4 2018-11-29 08:35:01

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 5,677

Re: Strange usage of CPU (100% one/two of cores) in Thinkpad P70

Well now you just disabled tracker, you can of course do that, but I don't consider that a solution as there can be valid reasons to want to have tracker running.

Offline

Board footer

Powered by FluxBB