Poor metrics performance from cri-dockerd (rancher desktop 1.2.x with dockerd)

[chancez]

Actual Behavior

cri-dockerd metrics performance is much worse than with dockershim. See Mirantis/cri-dockerd#15 rancher/rke#2716 and rancher/rke#2709

Steps to Reproduce

• LIMA_HOME="$HOME/Library/Application Support/rancher-desktop/lima" "/Applications/Rancher Desktop.app/Contents/Resources/resources/darwin/lima/bin/limactl" shell 0
• sudo apk add curl jq
• TOKEN="$(cat $(docker inspect "$(docker ps | grep metrics-server | grep -v POD | awk '{print $1}')" | jq '.[0].Mounts[] | select(.Destination=="/var/run/secrets/kubernetes.io/serviceaccount").Source' -r)/token)"
• time curl https://192.168.192.50:10250/stats/summary?only_cpu_and_memory=true -k -v -H "Authorization: Bearer ${TOKEN}"

Result

Takes 10+ seconds to get a response, whereas with 1.1.1 it takes less than 10ms

...
* Connection #0 to host 192.168.192.50 left intact
}real	0m 11.70s
user	0m 0.01s
sys	0m 0.00s

Expected Behavior

Querying metrics is fast.

Additional Information

No response

Rancher Desktop Version

1.2.x

Rancher Desktop K8s Version

v1.22.7

Which container runtime are you using?

moby (docker cli)

What operating system are you using?

macOS

Operating System / Build Version

Darwin dune.local 21.4.0 Darwin Kernel Version 21.4.0: Fri Mar 18 00:46:32 PDT 2022; root:xnu-8020.101.4~15/RELEASE_ARM64_T6000 arm64

What CPU architecture are you using?

arm64 (Apple Silicon)

Linux only: what package format did you use to install Rancher Desktop?

No response

Windows User Only

No response

[chancez]

Mirantis/cri-dockerd#38 seems to fix the issue. Replacing the binary and running /etc/init.d/cri-dockerd restart and curling the endpoint returns immediately.

[gunamata]

will be fixed by #2022