Proposal: add Core Scheduling support

[kailun-qin]

Linux 5.14 adds the support for Core Scheduling.

Core scheduling support allows userspace to define groups of tasks that can share a core. These groups can be specified either for security usecases (one group of tasks don’t trust another), or for performance usecases (some workloads may benefit from running on the same core as they don’t need the same hardware resources of the shared core, or may prefer different cores if they do share hardware resource needs). This is achieved by setting and copying core scheduling task cookies between the threads (PID), processes (TGID), and process groups (PGID). See the kernel doc for further details.

This would be useful for all containers within a pod. Also, it is particularly helpful for multi-tenant environments.

runc requirement: https://github.com/opencontainers/runc/issues/3061.

[sfc-gh-hyu]

Is there any update on this proposal? What's blocking this from moving forward?

[kailun-qin]

Is there any update on this proposal? What's blocking this from moving forward?

Thanks for the interest! Let's try to move the spec review forward.