CPU Utilization with K8s rack on Mac

Rack (Version 2)
1

Pretty consistent 30-40% cpu from Docker for me.
15%20AM

I reinstalled my rack fresh and there is a single app running a single container that has a CMD of ‘sleep’.

I enabled ‘Show system containers’ for K8s and I can see a few processes consistently using cpu:

15b80351b705        k8s_kube-controller-manager_kube-controller-manager-docker-for-desktop_kube-system_710c0d3b4f3cd8f2ee65068bcc49198e_0   4.12%               45.71MiB / 7.787GiB   0.57%               0B / 0B             56.9MB / 0B         9
73eb40ae6b25        k8s_etcd_etcd-docker-for-desktop_kube-system_3dfb2516a268bf8b0d43a783fad533f6_0                                         4.45%               55.34MiB / 7.787GiB   0.69%               0B / 0B             29.4MB / 10.7GB     17
db877dc70d50        k8s_kube-scheduler_kube-scheduler-docker-for-desktop_kube-system_b6155a27330304c86badfef38a6b483b_0                     1.72%               12.85MiB / 7.787GiB   0.16%               0B / 0B             27MB / 0B           8
d84c1d7b1cde        k8s_kube-apiserver_kube-apiserver-docker-for-desktop_kube-system_723b614df011d76edcaf6f999ad18b83_0                     4.67%               564MiB / 7.787GiB     7.07%               0B / 0B             66.8MB / 0B         10

It kind of seems like this is k8s and not convox, but I’m not sure. Is there anything that can be done about this, or are we just stuck with it?

2

Did a little googling, looks like we’re stuck with it:


3

Only 30%? Mine’s pretty consistently on 90% * CPU so if I allocate 2 cores to Docker for Mac its often at 180%.

I did see a slight improvement when I reset and moved to Docker Edge but it might just been the reset :man_shrugging:

4

I’m on Docker Edge and my utilization is generally fairly low but it definitely seems like they have a lot of room for improvement.