Aikar 4d38ee111f
Many fixes and improvements to chunk prioritization
I believe this brings us back to stable. A lot of complexity was
learned about juggling priorities.

We were essentially promoting more chunks to urgent than really
needed to be urgent.

So this commit adds a lot more logic to juggle neighbor priorities
and demote their priority once they meet the requirements needed of
them.

This greatly improves the performance of "urgent" chunks".

Fixes #3410
Fixes #3426
Fixes #3425
Fixes #3416
2020-05-22 01:03:42 -04:00
..
2018-10-24 12:36:37 -04:00
2018-10-24 12:36:37 -04:00
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2019-04-23 10:35:52 +01:00
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