I've set up Prometheus and Grafana for tracking and monitoring of my Kubernetes cluster.
I've set up 3 Nodes for my cluster.
I have 26 pods running (mostly monitoring namespace).
I have one major Node app (deployment) running and right now there isn't any load.
I'm trying to understand these graph metrics. However I can't understand why there's such high CPU cores usage despite there being no load on the app.
Here's a grafana screenshot
24% memory usage I can understand as there are Kubernetes processes running as well such as kube-system etc.
And it's also telling me my cluster can support 330 pods (currently 26). I'm only worried about high cpu cores. Can anybody explain it.