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[release-4.13] OCPBUGS-18829: cm: reorder setting of sched_load_balance for sandbox slice #1696

Merged
merged 1 commit into from Nov 21, 2023
Merged

[release-4.13] OCPBUGS-18829: cm: reorder setting of sched_load_balance for sandbox slice #1696

merged 1 commit into from Nov 21, 2023

Commits on Sep 12, 2023

  1. UPSTREAM: <carry>: cm: reorder setting of sched_load_balance for sand… 

    …box slice

If we call mgr.Apply() first, libcontainer's cpusetCopyIfNeeded()
will copy the parent cpuset and set load balancing to 1 by default.
This causes the kernel to set the cpus to not load balanced for a brief moment
which causes churn.

instead, create the cgroup and set load balance, then have Apply() copy the values into it.

Signed-off-by: Peter Hunt <pehunt@redhat.com>
    @haircommander
    haircommander authored and openshift-cherrypick-robot committed Sep 12, 2023
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