What would you like to be added:

An admission-time mechanism to fair share unused resources without preemptions.

Why is this needed:

The current fair sharing approach enforces fair sharing via preemptions. Workloads from CQ that is consuming more shared resources are preempted in favor of workloads that is consuming less. This however has couple of drawbacks:

• Doesn't work in a situation when preemptions are not recommended.
• Doesn't allow stable admission of large (like consuming more than 1/Nth) amount of shared resources.

A new, complementary mechanism is needed to address these needs.

Completion requirements:

This enhancement requires the following artifacts:

• Design doc

  API change

  Docs update
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The artifacts should be linked in subsequent comments.