The alert KubeletOperationalLatency has been on warning level of and on, but more frequently in the last two weeks.
We should investigate:
a) whether the alert's limits are too tight
b) if the alert is indicating an actual problem, and what the root cause is.
The CPU throttling dashboard by Luca may be a start for looking into this: https://grafana-rw.wikimedia.org/d/Q1HD5X3Vk/elukey-k8s-throttling?orgId=1