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try to install some monitoring tool or a simple htop inside to see what is running inside

Thanks for the suggestions! I am running kube-prometheus-stack and seeing a high RPC rate on etcd (~300 ops/s), and high work queue latency (10s) for some parts of the kubernetes API. Are you suggesting running htop on the host OS? If so, I'm only seeing the high CPU being attributed to the k3s service and no breakdown beyond that. I also have the below api limits on my `config.yaml`:

kube-apiserver-arg:
 - 'max-requests-inflight=100'
 - 'max-mutating-requests-inflight=50'
kube-controller-manager-arg:
 - 'kube-api-qps=20'
 - 'kube-api-burst=30'

depending on what you find try to add some swap if possible

you didn’t say what version you’re on, but this sounds a lot like https://github.com/k3s-io/k3s/issues/12127

Ha! I just came back to this chat after digging that up as well! I just started using Harbor as a pull-through image registry anyway, so I am going to try disabling Spegel registry mirroring to see if that clears things up. Thanks!

I contribute into Harbor @clean-piano-40966 in case if there is something need it

@damp-xylophone-94549 Perfect, I'll keep that in mind thank you! @creamy-pencil-82913 I'm on

v1.31.7+k3s1

and it's (currently) looking like turning off that image registry mirroring has reduced my cpu. Love to see graphs like this:

it’s fixed for this month’s releases, if you do eventually want to turn it back on again

Awesome, thank you for the insight.