SEAN K.H. LIAO

otel hostmetrics

prometheus/client_golang

google/cadvisor


otel hostmetrics

user system

nice + iowait + irq + softirq + steal + guest + guestnice

cadvisor

container_cpu_system_seconds_total container_cpu_usage_seconds_total container_cpu_user_seconds_total

memory

Usually when I have to think about this, I have 2 questions:

Memory can be thought of in several tiers:

Important to note, there's virtual memory, which is free ~~infinite~~ space that can be used, backed by physical memory, the kind you have to buy.

collecting data