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[OSDOCS#21417]: Add schedstats kernel arg to memory overcommit MachineConfig #119015

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[OSDOCS#21417]: Add schedstats kernel arg to memory overcommit MachineConfig #119015

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4 changes: 4 additions & 0 deletions modules/virt-enabling-higher-vm-workload-density.adoc
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Expand Up @@ -66,10 +66,14 @@ spec:
RequiredBy=kubelet-dependencies.target
enabled: true
name: swap-provision.service
kernelArguments:
- schedstats=enable
----
+
Set the `SWAP_SIZE_MB` value to the amount of swap space to provision on the node, in MB. Adjust this value by using the formula that follows.
+
The `schedstats=enable` kernel argument enables scheduler statistics that virtualization observability dashboards use, such as vCPU wait metrics. This kernel argument adds a minor additional load to the scheduler.
+
Ensure that the provisioned swap space is at least equal to the overcommitted RAM. Calculate the amount of swap space to provision on a node by using the following formula:
+
----
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