I want to calculate the CPU and Memory Percentage of Resource utilization of an individual pod in Kubernetes. For that, I am using metrics server API
kubectl top pods --all-namespaces
kube-system coredns-5644d7b6d9-9whxx 2m 6Mi
kube-system coredns-5644d7b6d9-hzgjc 2m 7Mi
kube-system etcd-manhattan-master 10m 53Mi
kube-system kube-apiserver-manhattan-master 23m 257MiBut I want the percentage utilization of individual pod Both CPU % and MEM%
From this output by top command it is not clear that from how much amount of cpu and memory it consumes the resultant amount?
I don't want to use Prometheus operator I saw one formula for it
sum (rate (container_cpu_usage_seconds_total{image!=""}[1m])) by (pod_name)Can I calculate it with MetricsServer API?
I thought to calculate like this
CPU% = ((2+2+10+23)/ Total CPU MILLICORES)*100
MEM% = ((6+7+53+257)/AllocatableMemory)* 100
Please tell me if I right or wrong. Because I didn't see any standard formula for calculating pod utilization in Kubernetes documentation
Unfortunately kubectl top pods provides only a quantity values and not a percentages.
Here is a good explanation of how to interpret those values.
It is currently not possible to list pod resource usage in percentages with a kubectl top command.
You could still chose Grafana with Prometheus but it was already stated that you don't want to use it (however maybe another member of the community with similar problem would do so I am mentioning it here).
EDIT:
Your formulas are correct. They will calculate how much CPU/Mem is being consumed by all Pods relative to total CPU/Mem you got.
I hope it helps.