title: GCP: Kubernetes engine allocatable resources
body: <p>According to the <a href="https://cloud.google.com/kubernetes-engine/docs/concepts/cluster-architecture#node_allocatable" rel="nofollow noreferrer">documentation</a>, Kubernetes reserves a significant amount of resources on the nodes in the cluster in order to run itself. Are the numbers in the documentation correct or is Google trying to sell me bigger nodes?</p>
  
  <p>Aside: Taking kube-system pods and other reserved resources into account, am I right in saying it's better resource-wise to rent one machine equiped with 15GB of RAM instead of two with 7.5GB of RAM each?</p>