TrueNAS k3s-server uses more than 10% CPU
The k3s supposed to be the lightweight k8s, but it used more than 10% when no container running. The problem was reported when TrueNAS running as VM.
This issue also caused high disk utilization, which caused whole system slow, huge IO wait.
There is a zpool called
ix-applications created for k3s. To stop k3s process, needs to unset pool in Apps => Settings => Unset Pool.
After Unset Pool, the CPU utilization dropped from 70% to 5%.