- Scheduler doesn't run plugin's Filter method when its PreFilter method returned a Skip status.
  In other words, your PreFilter/Filter plugin can return a Skip status in PreFilter if the plugin does nothing in Filter for that Pod.
  Scheduler skips NodeAffinity Filter plugin when NodeAffinity Filter plugin has nothing to do with a Pod.

- The scheduler skips the `PodTopologySpread` Filter plugin if no spread constraints.
  It will affect some metrics values related to the `PodTopologySpread` Filter plugin. ([#117683](https://github.com/kubernetes/kubernetes/pull/117683), [@utam0k](https://github.com/utam0k))

  2. PreScorePlugin: use NodeInfo in `PreScore`.
  3. Extender: use NodeInfo in `Filter` and `Prioritize`. ([#121954](https://github.com/kubernetes/kubernetes/pull/121954), [@AxeZhan](https://github.com/AxeZhan)) [SIG Autoscaling, Node, Scheduling, Storage and Testing]
- When PreFilterResult filters out some Nodes, the scheduling framework assumes them as rejected via `UnschedulableAndUnresolvable`, 

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