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phosae/kube-cAdvisor.md

Last active January 9, 2023 13:02
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kube metrics
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kube-cAdvisor.md

CPU

rate(container_cpu_usage_seconds[10m])/(container_spec_cpu_quota / container_spec_cpu_period)

by Pod and Container

sum(rate(container_cpu_usage_seconds_total{name!~".*prometheus.*", image!="", container!="POD"}[5m])) by (pod, container) 
/
sum(container_spec_cpu_quota{name!~".*prometheus.*",image!="",container!="POD"}/container_spec_cpu_period{name!~".*prometheus.*", image!="", container!="POD"}) by (pod, container) * 100

avg/max CPU usage of a set of Pods behind a App?

avg by(container) (rate(container_cpu_usage_seconds_total{container="myapp",metrics_path="/metrics/cadvisor",namespace="defualt"}[5m]) 
/ 
ignoring(cpu)
(container_spec_cpu_quota{container="myapp",metrics_path="/metrics/cadvisor",namespace="default"}/container_spec_cpu_period{container="myapp",metrics_path="/metrics/cadvisor",namespace="default"})*100)

MEM

avg/max MEM usage of a set of Pods behind a App?

avg by (container_name) (container_memory_rss{namespace="default",container_name="{{$values.app}}",metrics_path="/metrics/cadvisor"}
/
container_spec_memory_limit_bytes{namespace="default",container_name="{{$values.app}}",metrics_path="/metrics/cadvisor"}
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phosae commented Jan 9, 2023

cAdvisor metric doc

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phosae commented Jan 9, 2023 •
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container_memory_usage_bytes = container_memory_cache + container_memory_rss

stackoverflow - container_memory_working_set_bytes V.S container_memory_rss have some useful links

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