optimize the `SplitKeyRangesByLocations` performance
Open
type/enhancement
- Dominant language
- Go
- Stars
- 40.5k
- Forks
- 6.2k
- PR merge metrics
- PR metrics pending
Description
## Enhancement
On very large cluster, where there are really **lots of regions**, the `SplitKeyRangesByLocations` performance is not good enough.
It would be nice if we can optimize here:
Contributor guide
Assessment
This issue has not been assessed yet.