Split L3 Cache Topology Awareness in CPU Manager

[sphrasavath]

What type of PR is this?

feature

What this PR does / why we need it:

Enhancement Split L3 Cache Topology Awareness in CPU Manager

Which issue(s) this PR fixes:

Fixes enhancements/enhancements
KEP4800

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[KEP]: https://github.com/kubernetes/enhancements/issues/4800
[Design doc]:  https://docs.google.com/document/d/1LpnMjGNsQyHOuVHMktIrjZsdRw9aKZ8djt354nAno6M/edit?usp=sharing

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: sphrasavath / name: Sonemaly Phrasavath (3f459f2)
• ✅ login: wongchar / name: Charles Wong (b86eb19)

[k8s-ci-robot]

Hi @sphrasavath. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[ffromani]

/ok-to-test

[ffromani]

hi! thanks for the contribution! the policy ot the kubernetes project is to not accept merge commits in the PRs, please update when you get a chance

[ffromani]

priority TBD depending on the KEP conversation

[ffromani]

/kind feature

[ffromani]

/cc

[ffromani]

/test pull-kubernetes-node-kubelet-serial-containerd
/test pull-kubernetes-node-kubelet-serial-containerd-sidecar-containers
/test pull-kubernetes-node-kubelet-serial-cpu-manager
/test pull-kubernetes-node-kubelet-serial-hugepages
/test pull-kubernetes-node-kubelet-serial-memory-manager
/test pull-kubernetes-node-kubelet-serial-topology-manager

[ffromani]

/lgtm

massive squash

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: b9ddf56248ae3a44702d425f910dc5ac4e240c43

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mrunalp, sphrasavath

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• pkg/kubelet/cm/cpumanager/OWNERS [mrunalp]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[mrunalp]

/hold
for @MarSik comments

[ffromani]

/test pull-kubernetes-e2e-gce

[ffromani]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 78db9261443692c7d247244fdfe3d85c6dac11e7

[ffromani]

/hold cancel

comments have been addressed

[ffromani]

/test pull-kubernetes-node-kubelet-serial-containerd
/test pull-kubernetes-node-kubelet-serial-containerd-sidecar-containers
/test pull-kubernetes-node-kubelet-serial-cpu-manager
/test pull-kubernetes-node-kubelet-serial-hugepages
/test pull-kubernetes-node-kubelet-serial-memory-manager
/test pull-kubernetes-node-kubelet-serial-topology-manager

[MarSik]

/lgtm thanks for explaining the more complicated pieces