Etcd using 10G of memory, high idle load

Hi, I recently installed Kubernetes on a Debian Stretch VM with kubeadm following this documentation: Installing kubeadm - Kubernetes

Everything seems to work but the load avg. is constantly high. About 0.6 to 1.3 when idle. And after deploying a postgres pod the load hits around 3.5.

I see that etcd consumes a lot of memory, 10G

18826 root 20 0 10,056g 63936 33204 S 0,3 1,6 0:01.95 etcd

Is this really reasonable? The VM don’t even have 10G of memory.

Could this has something to do with the high load? Is there a way to fix this high load problem?

Thanks
Regards Daniel