Update: I couldn’t figure out how to see the processes directly from the terminal (I guess it’s running ina docker that is hidden from me, and I don’t know how to access).
But I installed Glances, and found it is the hassio_dns process that is using 162% cpu.
I checked my DNS entry, it was correct (8.8.8.8). So I changed it to point at my local DNS server, (that all my DHCP clients use), and that still had the same issue. I switched again to 1.1.1.1, same problem.
I note the dns logs have many lines like:
[ERROR] plugin/errors: 2 . NS: dial tcp 1.1.1.1:853: connect: connection refused
Anyhow, this is no longer a py-spy issue, so I’ll refrain from commenting further in this thread, and go try and figure out this DNS issue. Just leaving this info here in case it helps anyone else track down their CPU usage issues.
This thread looks promising regarding High CPU usage from Hassio DNS