/kind bug

This is not a bug in Kubernets per se, it's more of a heads-up.

I've read this great blog post:

• https://kubernetes.io/blog/2018/07/24/feature-highlight-cpu-manager/

From the blog post I learned that k8s is using cfs quotas to enforce CPU limits. Unfortunately, those can lead to unnecessary throttling, especially for well behaved tenants.

See this unresolved bug in Linux kernel I filed a while back:

• https://bugzilla.kernel.org/show_bug.cgi?id=198197

There's an open and stalled patch that addresses the issue (I've not verified if it works):

• https://lore.kernel.org/patchwork/cover/907448/

cc @ConnorDoyle @balajismaniam