open-consul/.changelog/16552.txt
Lincoln Stoll 5c5e1266e3
perf: Remove expensive reflection from raft/mesh hot path (#16552)
* perf: Remove expensive reflection from raft/mesh hot path

Replaces a reflection-based copy of a struct in the mesh topology with a
deep-copy generated implementation.

This is in the hot-path of raft FSM updates, and the reflection overhead was a
substantial part of mesh registration times (~90%). This could manifest as raft
thread saturation, and resulting instability.

Co-authored-by: Joel Brandhorst <joel.brandhorst@gmail.com>

* add changelog

---------

Co-authored-by: Joel Brandhorst <joel.brandhorst@gmail.com>
Co-authored-by: John Murret <john.murret@hashicorp.com>
2023-05-26 11:42:05 -06:00

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```release-note:improvement
raft: Remove expensive reflection from raft/mesh hot path
```