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Comment by jeffbee | Hacker News Reader

I don't know what nproc does. Consider `taskset`

I re-did the experiment again with `taskset` and got the same results, i.e. the mask is independent of creation of the "Guaranteed QoS" Pod.

FWIW, `taskset` uses the same syscall as `nproc` (according to `strace`).

Perhaps it is an artifact of your and my various container runtimes. For me, in a guaranteed qos pod, taskset shows just 1 visible CPU for a Guaranteed QoS pod with limit=request=1.

  # taskset -c -p 1
  pid 1's current affinity list: 1

  # nproc
  1

I honestly do not see how it can work otherwise.

After reading https://kubernetes.io/docs/tasks/administer-cluster/cpu-mana..., I think we have different policies set for the CPU Manager.

In my case it's `"cpuManagerPolicy": "none"` and I suppose you're using `"static"` policy.

Well, TIL. Thanks!

TIL also. The difference between guaranteed and burstable seems meaningless without this setting.

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