"Top" command and CPU usage

Installation Home Assistant OS
1

Hello,
please, can somebody tell me how should I interpret this top command output?
There is 28% over all CPU load, but each individual process has 0%.

Thank you.

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2

This can be caused by high io, but your io looks ok. Try sorting via cpu usage though and the highest usage will come to the top.

3

I guess it can be caused by add-ons… There should be some command to show add-ons system resources usage. There is ha addons stats command, but have to use is for every add-on individually… :roll_eyes:

4

pressing shift-p will put the highest process cpu usage at the top

5

Yes, it does, but my issue is, that all processes shows 0% while overall CPU usage is about 20% (see screenshot).

6

I’m seeing the same thing. Every process shows up as 0%. Overall my CPU utilization is pretty low (hovers around 10%) so maybe it’s just a rounding thing. But it seems odd that no process ever gets at least 0.5% so it would round up to 1%.

[PS: Hass.io on a Raspberry Pi 3B+]

7

The issue of ‘top’ on SSH command line still exists.
Overall CPU process after boot is at >90%, but the listed processes all only show 0%.
Using Shift+p changes the order of processes, but does not bring the big CPU users to the start of the list.

8

well there are things like IO that may be causing high cpu usage. Try iotop.

9

I ssh with users root into HA, but there is no iotop on HA.

[core-ssh ~]$ iotop

-bash: iotop: command not found
10

If it isn’t you’ll have to install it

apk add iotop
11

OK, done (I’m the ‘apt’ guy…). iotop is now installed, but does not work.

[core-ssh ~]$ iotop
Traceback (most recent call last):
  File "/usr/bin/iotop", line 17, in <module>
    main()
  File "/usr/lib/python3.10/site-packages/iotop/ui.py", line 620, in main
    main_loop()
  File "/usr/lib/python3.10/site-packages/iotop/ui.py", line 610, in <lambda>
    main_loop = lambda: run_iotop(options)
  File "/usr/lib/python3.10/site-packages/iotop/ui.py", line 508, in run_iotop
    return curses.wrapper(run_iotop_window, options)
  File "/usr/lib/python3.10/curses/__init__.py", line 94, in wrapper
    return func(stdscr, *args, **kwds)
  File "/usr/lib/python3.10/site-packages/iotop/ui.py", line 498, in run_iotop_window
    taskstats_connection = TaskStatsNetlink(options)
  File "/usr/lib/python3.10/site-packages/iotop/data.py", line 137, in __init__
    self.family_id = controller.get_family_id('TASKSTATS')
  File "/usr/lib/python3.10/site-packages/iotop/genetlink.py", line 69, in get_family_id
    m = GeNlMessage.recv(self.conn)
  File "/usr/lib/python3.10/site-packages/iotop/genetlink.py", line 51, in recv
    msg = conn.recv()
  File "/usr/lib/python3.10/site-packages/iotop/netlink.py", line 229, in recv
    raise err
OSError: Netlink error: No such file or directory (2)
[core-ssh ~]$