I'm trying to use openraft with 20k+ messages per second, and I seem to be running into quite a bit of overhead simply allocating/copying/serializing stuff. I'm currently using bincode, but would like to switch to rkyv as I believe it will do better.

Unfortunately rkyv doesn't work with serde Serialize/Deserialize (due to fundamental differences around supporting zero-copy), and thus there would need to be support added into openraft for me to be able to use rkyv to serialize things like VoteRequest/AppendEntriesRequest/InstallSnapshotRequest.

I think it would just be a matter of adding some different derives behind a feature flag for rkyv. Is there interest in this? If so I will try to make a PR.