I am running Debian 10 (kernel 4.19.0-18-amd64) on bare metal and I have recently noticed strange CPU usage.
Screenshot of htop, sorted by CPU%
Screenshot of top, sorted by CPU%
As you can see, 100% CPU usage is reported over all of the cores but the reported usage for each individual process does not seem to back this up.
I have looked at iotop
iotop, sorted in ascending order
Where else can I look to try and hunt down this resource hog?
Thanks.