We are seeing rather high interrupt and context switch counts on our Nomad clients:
# vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st
6 0 0 317479392 4168 104093176 0 0 0 0 145232 306836 11 4 84 0 0
The average of ~150k in/s and ~300k cs/s are not spikes but sustained over the day. We analysed the processes (with pidstat), the Top 1 service type generates around 40k cs/s. We looked into networking as well, it seems most interrupts originate from there. So we argue that Docker networking is responsible for the high counts.
My Question: Are these expected values for a medium to large sized node? We are running on 32c/64t CPU (~20% busy), 512GB RAM (~140GB free). Thanks for sharing your experience.
