kube-apiserver cpu usage increased to 34% in OVN IC compared to openshiftSDN. This is observed while running node-density-cni with 80 pods per node configuration on a 120 node environment. Below are the kube-apiserver cpu usage numbers in all the 3 environments -
|SDN||Avg CPU %||Max CPU %|
Avg kube-apiserver CPU usage 34% increase in IC compared to OpenshiftSDN
Avg kube-apiserver CPU usage 57% increase in IC compared to OVN
Max kube-apiserver CPU usage is also very high compared to both OpenshiftSDN and OVN.
kube-apiserver CPU & memory usage grafana panels -
OCP version 4.14.0-0.nightly-2023-07-30-234232
I can provide the environment when the engineer wants to debug.