e.g. "reboot" by use of menus: 10-30 seconds delay to just bring up the first menu!
As you can see (below), I have folding at home client running;
it runs close to 24/7 since quite long; closing up on 10k WUs.
All runs on a basically "vanilla" Ubuntu 20.04, fully updated (done daily).
I use specific selected software packages, less than 10 of them, a larger selection of packages (PPA-based mostly, deb's in some cases; e.g. fahclient) gets used in bash. I avoid other types of installs, not impressed by snap.
So: Some time ago i noticed that the computer became less and less responsive with growing uptime. For long I thought it was the FAHClient processes, as pausing them allowed the computer to be used. But recently this has shown to not have much effect any longer.
Launching top and having it running finally revealed one more possible problem:
gnome-shell shows with very high CPU% -numbers.
Launching top for specific pids, like:
$ top $(ps -ax \ | grep -E 'fahc|gnome-shell' \ | grep -v grep \ | sed -re 's/ *([0-9]+) .*/-p\1/')
Still probing this... not that experienced with similar issues.
Ref:
- Ubuntu 18.04 gnome-shell high CPU usage
- https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/1740
^- how do I determine if this is the culprit?
$ inxi -F
System: Host: wkbx Kernel: 5.4.0-52-generic x86_64 bits: 64 Desktop: Gnome 3.36.4 Distro: Ubuntu 20.04.1 LTS (Focal Fossa)
Machine: Type: Desktop System: ASUS product: All Series v: N/A serial:
Mobo: ASUSTeK model: MAXIMUS VI HERO v: Rev 1.xx serial: UEFI: American Megatrends
v: 1603 date: 08/15/2014
CPU: Topology: Quad Core model: Intel Core i7-4770K bits: 64 type: MT MCP L2 cache: 8192 KiB
Speed: 1098 MHz min/max: 800/3900 MHz Core speeds (MHz): 1: 1097 2: 1099 3: 1097 4: 1097 5: 1098 6: 1098 7: 1098
8: 1098
Graphics: Device-1: NVIDIA TU106 [GeForce RTX 2060 Rev. A] driver: nvidia v: 450.80.02
Display: x11 server: X.Org 1.20.8 driver: nvidia unloaded: fbdev,modesetting,nouveau,vesa
resolution: 2560x1440~60Hz, 1920x1080~60Hz
OpenGL: renderer: GeForce RTX 2060/PCIe/SSE2 v: 4.6.0 NVIDIA 450.80.02
Audio: Device-1: Intel 8 Series/C220 Series High Definition Audio driver: snd_hda_intel
Device-2: NVIDIA TU106 High Definition Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.4.0-52-generic
Network: Device-1: Intel Ethernet I217-V driver: e1000e
IF: eno1 state: up speed: 1000 Mbps duplex: full mac: e0:3f:49:17:11:b4
Drives: Local Storage: total: 21.15 TiB used: 9.31 TiB (44.0%)
ID-1: /dev/sda vendor: Samsung model: SSD 850 EVO 250GB size: 232.89 GiB
ID-2: /dev/sdb vendor: HGST (Hitachi) model: HUH721212ALN604 size: 10.91 TiB
ID-3: /dev/sdc vendor: Western Digital model: WD30EFRX-68EUZN0 size: 2.73 TiB
ID-4: /dev/sdd vendor: Seagate model: ST8000VN0022-2EL112 size: 7.28 TiB
Partition: ID-1: / size: 227.74 GiB used: 18.47 GiB (8.1%) fs: ext4 dev: /dev/sda2
ID-2: /home size: 2.69 TiB used: 1.85 TiB (68.8%) fs: ext4 dev: /dev/sdc1
Sensors: System Temperatures: cpu: 29.8 C mobo: 27.8 C gpu: nvidia temp: 46 C
Fan Speeds (RPM): N/A gpu: nvidia fan: 0%
Info: Processes: 335 Uptime: 1d 2h 04m Memory: 31.30 GiB used: 2.85 GiB (9.1%) Shell: bash inxi: 3.0.38
Top as show on first lines:
top - 08:20:19 up 1 day, 1:25, 1 user, load average: 7,25, 7,17, 7,12
Tasks: 7 total, 0 running, 7 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0,5 us, 2,6 sy, 85,1 ni, 11,6 id, 0,2 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 18277,8 free, 2975,4 used, 10801,4 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28580,6 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1736 fahclie+ 20 0 9925684 165052 14600 S 0,3 0,5 2:56.60 FAHClient
2040 hannu 20 0 4743472 428260 126736 S 0,3 1,3 62:40.00 gnome-shell
1482 gdm 20 0 3979452 172612 94724 S 0,0 0,5 0:27.79 gnome-shell
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
1734 root 20 0 86004 3344 2796 S 0,0 0,0 0:31.30 FAHClient
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
top - 08:21:27 up 1 day, 1:27, 1 user, load average: 7,92, 7,41, 7,20
Tasks: 7 total, 2 running, 5 sleeping, 0 stopped, 0 zombie
%Cpu(s): 6,3 us, 7,0 sy, 80,2 ni, 6,1 id, 0,3 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 17797,5 free, 3418,7 used, 10838,4 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28121,8 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2040 hannu 20 0 4743328 452388 126740 R 26,7 1,4 62:56.02 gnome-shell
1482 gdm 20 0 3979452 172612 94724 S 0,0 0,5 0:27.81 gnome-shell
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
1734 root 20 0 86004 3344 2796 R 0,0 0,0 0:31.32 FAHClient
1736 fahclie+ 20 0 9925684 165052 14600 S 0,0 0,5 2:56.75 FAHClient
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
top - 08:21:44 up 1 day, 1:27, 1 user, load average: 7,96, 7,45, 7,22
Tasks: 7 total, 1 running, 6 sleeping, 0 stopped, 0 zombie
%Cpu(s): 1,9 us, 4,9 sy, 83,0 ni, 9,8 id, 0,4 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 17817,8 free, 3398,3 used, 10838,6 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28142,8 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2040 hannu 20 0 4743328 451036 126740 R 7,3 1,4 62:59.25 gnome-shell
1736 fahclie+ 20 0 9925684 165052 14600 S 0,3 0,5 2:56.78 FAHClient
1482 gdm 20 0 3979452 172612 94724 S 0,0 0,5 0:27.81 gnome-shell
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
1734 root 20 0 86004 3344 2796 S 0,0 0,0 0:31.33 FAHClient
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
top - 08:22:02 up 1 day, 1:27, 1 user, load average: 7,75, 7,42, 7,21
Tasks: 7 total, 1 running, 6 sleeping, 0 stopped, 0 zombie
%Cpu(s): 4,7 us, 6,7 sy, 80,7 ni, 7,7 id, 0,2 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 17838,0 free, 3372,0 used, 10844,6 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28169,1 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2040 hannu 20 0 4743328 453788 126740 R 20,5 1,4 63:02.79 gnome-shell
1736 fahclie+ 20 0 9925684 165052 14600 S 0,5 0,5 2:56.86 FAHClient
1734 root 20 0 86004 3344 2796 S 0,1 0,0 0:31.34 FAHClient
1482 gdm 20 0 3979452 172612 94724 S 0,0 0,5 0:27.81 gnome-shell
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
top - 08:22:17 up 1 day, 1:27, 1 user, load average: 7,58, 7,40, 7,21
Tasks: 7 total, 1 running, 6 sleeping, 0 stopped, 0 zombie
%Cpu(s): 4,8 us, 7,4 sy, 79,8 ni, 7,9 id, 0,1 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 17839,1 free, 3370,8 used, 10844,7 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28170,3 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2040 hannu 20 0 4743328 451040 126740 R 23,3 1,4 63:06.26 gnome-shell
1482 gdm 20 0 3979452 172612 94724 S 0,1 0,5 0:27.82 gnome-shell
1734 root 20 0 86004 3344 2796 S 0,1 0,0 0:31.35 FAHClient
1736 fahclie+ 20 0 9925684 165052 14600 S 0,1 0,5 2:56.87 FAHClient
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
top - 08:22:32 up 1 day, 1:28, 1 user, load average: 7,53, 7,40, 7,21
Tasks: 7 total, 0 running, 7 sleeping, 0 stopped, 0 zombie
%Cpu(s): 4,7 us, 5,8 sy, 81,6 ni, 7,8 id, 0,1 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 17827,4 free, 3373,1 used, 10854,1 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28167,9 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2040 hannu 20 0 4743328 453792 126740 S 21,9 1,4 63:09.61 gnome-shell
1736 fahclie+ 20 0 9925684 165052 14600 S 0,5 0,5 2:56.95 FAHClient
1482 gdm 20 0 3979452 172612 94724 S 0,0 0,5 0:27.82 gnome-shell
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
1734 root 20 0 86004 3344 2796 S 0,0 0,0 0:31.35 FAHClient
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
top - 08:22:47 up 1 day, 1:28, 1 user, load average: 7,71, 7,45, 7,23
Tasks: 7 total, 1 running, 6 sleeping, 0 stopped, 0 zombie
%Cpu(s): 3,9 us, 8,2 sy, 79,3 ni, 8,4 id, 0,2 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 17837,7 free, 3373,4 used, 10843,6 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28178,3 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2040 hannu 20 0 4743328 453668 126740 R 19,7 1,4 63:12.66 gnome-shell
1734 root 20 0 86004 3344 2796 S 0,1 0,0 0:31.37 FAHClient
1736 fahclie+ 20 0 9925684 165052 14600 S 0,1 0,5 2:56.97 FAHClient
1482 gdm 20 0 3979452 172612 94724 S 0,0 0,5 0:27.82 gnome-shell
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
top - 08:23:00 up 1 day, 1:28, 1 user, load average: 7,62, 7,44, 7,23
Tasks: 7 total, 1 running, 6 sleeping, 0 stopped, 0 zombie
%Cpu(s): 5,0 us, 7,1 sy, 80,6 ni, 7,1 id, 0,2 wa, 0,0 hi, 0,0 si, 0,0 st
MiB Mem : 32054,6 total, 17838,9 free, 3363,1 used, 10852,7 buff/cache
MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 28188,5 avail Mem
Change delay from 3,0 to
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2040 hannu 20 0 4743328 451036 126740 R 23,7 1,4 63:15.76 gnome-shell
1736 fahclie+ 20 0 9925684 165052 14600 S 0,2 0,5 2:56.99 FAHClient
1482 gdm 20 0 3979452 172612 94724 S 0,0 0,5 0:27.82 gnome-shell
1538 gdm 20 0 2933040 27220 22180 S 0,0 0,1 0:00.04 gjs
1734 root 20 0 86004 3344 2796 S 0,0 0,0 0:31.37 FAHClient
2100 hannu 20 0 580956 19812 17232 S 0,0 0,1 0:00.07 gnome-shell-cal
2142 hannu 20 0 2933144 27080 21704 S 0,0 0,1 0:00.25 gjs
Status 2021-01-13:
It appears as fahclient_7.6.21_amd64.deb IS the culprit.
Stopping it entirely, and then restarting it seems to clean out the problem - for the duration of a few days (client running 24/7).
Stopping it: save this as killfah.sh
then run it with
source killfah.shRestart the client with
sudo /etc/init.d/FAHClient start ¬e that <same>
restartseems to NOT remedy the problem.