Asynchronous preemption in the scheduler

[sanposhiho]

Enhancement Description

• One-line enhancement description (can be used as a release note): The scheduler runs the preemption (PostFilter) asynchronously to enhance the scheduling throughput on the failure scenarios.
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/blob/master/keps/sig-scheduling/4832-async-preemption/README.md
• Discussion Link: https://github.com/kubernetes/kubernetes/issues/126858
• Primary contact (assignee): @sanposhiho
• Responsible SIGs: SIG-Scheduling
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): v1.32
  • Beta release target (x.y):
  • Stable release target (x.y):
• [ ] Alpha
  • [x] KEP (k/enhancements) update PR(s): https://github.com/kubernetes/enhancements/pull/4833
  • [ ] Code (k/k) update PR(s):
  • [ ] Docs (k/website) update PR(s): https://github.com/kubernetes/website/pull/48407

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

/sig scheduling /assign