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Thread: plasmashell and X high CPU load

  1. #1
    Join Date
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    Angry plasmashell and X high CPU load

    I have installed tumbleweed snapshot 20190521 via zypper dup.
    After reboot the system is slow and top shows a high CPU load for plasmashell and X
    Code:
    top - 08:13:32 up 31 min,  3 users,  load average: 2.05, 2.08, 1.75
    Tasks: 299 total,   3 running, 296 sleeping,   0 stopped,   0 zombie
    %Cpu(s):  7.1 us,  9.7 sy,  0.0 ni, 82.9 id,  0.0 wa,  0.0 hi,  0.0 si,  0.3 st
    MiB Mem : 12948.51+total, 10246.16+free, 1529.777 used, 1172.574 buff/cache
    MiB Swap: 12290.99+total, 12290.99+free,    0.000 used. 11244.81+avail Mem 
    
      PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
     3201 philippe  20   0 1239732 208940 122548 R 157.6 1.576  34:08.56 plasmashell
     2872 root      20   0  307508  89828  57444 R 86.34 0.677  19:56.85 X
     3868 philippe  20   0 2565124 441588 119580 S 4.487 3.330   3:40.28 seamonkey
      264 root      20   0    8108   4668   1544 S 0.698 0.035   0:12.51 haveged
     3192 philippe  20   0 2570428  73272  59540 S 0.399 0.553   0:10.66 kwin_x11
     3612 philippe  20   0  452036  95952  77252 S 0.399 0.724   0:10.20 konsole
     4111 root      20   0    7716   4408   3456 R 0.299 0.033   0:07.18 top
       10 root      20   0       0      0      0 I 0.199 0.000   0:06.79 rcu_sched
     2181 mysql     20   0 1829356  86056  20008 S 0.199 0.649   0:02.70 mysqld
     3594 philippe  20   0    4176   2240   1976 S 0.199 0.017   0:05.91 ksysguardd
       13 root      20   0       0      0      0 I 0.100 0.000   0:00.65 kworker/0:1-events
    I use kde with a nvidia card (quadro K4200 GK104GL) and driver nouveau.

    After a logout and login I load only top: plasmashell's CPU load is around 35% and without doing anything it grows to 120-130%.
    Loading seamonkey (browser) it reaches 155-165 %.

    I have already see this problem 2 years ago but this was solved.
    Anybody with same problem?

    Many thanks in advance
    Philippe
    Tumbleweed (x86_64) Kernel 5.3.5 with KDE plasma

  2. #2
    Join Date
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    Belgium
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    Default Re: plasmashell and X high CPU load

    OK Problem is not present with a new user.
    I checked in journalctl but found nothing strange.
    So I removed in ~/.config the directories akonadi, session and plasma-workspace but this didn't solve the problem.
    I renamed ~/.config in ~/.configbad and the problem was solved; now I need to re-enter all my settings

    Any ideas which directories /files can be the culprit?

    Regards
    Philippe
    Tumbleweed (x86_64) Kernel 5.3.5 with KDE plasma

  3. #3
    Join Date
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    Default Re: plasmashell and X high CPU load

    Quote Originally Posted by phil524 View Post
    I renamed ~/.config in ~/.configbad and the problem was solved; now I need to re-enter all my settings

    Any ideas which directories /files can be the culprit?
    My first try would be "plasma-org.kde.plasma.desktop-appletsrc" on the basis it may be a widget you have that's causing the load.

    You could make a copy of ~/.config as, for example "~/.config-good then copy half of the contents of your "configbad" to "config"

    If that doesn't re-introduce the problem then save that as config-good and copy half of the remaining configbad, keep going with the binary split until you find the offending directory/file.

    If the first half does re-introduce the problem then remove half of those... etc etc.
    Regards, Paul

    2x Tumbleweed (Snapshot: 20191016) KDE Plasma 5
    2x Leap 15.1 KDE Plasma 5

  4. #4
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    Default Re: plasmashell and X high CPU load

    Quote Originally Posted by tannington View Post
    My first try would be "plasma-org.kde.plasma.desktop-appletsrc" on the basis it may be a widget you have that's causing the load.

    You could make a copy of ~/.config as, for example "~/.config-good then copy half of the contents of your "configbad" to "config"

    If that doesn't re-introduce the problem then save that as config-good and copy half of the remaining configbad, keep going with the binary split until you find the offending directory/file.

    If the first half does re-introduce the problem then remove half of those... etc etc.
    Thanks,
    I'm doing a backup and 'll try your advice. I have already compared the two plasma-org.kde.plasma.desktop-appletsrc. They are not identical but I don't see anything strange in the old version.

    Regards
    Philippe
    Tumbleweed (x86_64) Kernel 5.3.5 with KDE plasma

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