I believe https://github.com/erthink/libmdbx https://github.com/erthink/libmdbx is the highest-throughput transactional KV store with a Golang binding right now

I believe https://github.com/erthink/libmdbx https://github.com/erthink/libmdbx is the highest-throughput transactional KV store with a Golang binding right now. (It’s the current storage backend for https://github.com/ledgerwatch/erigon https://github.com/ledgerwatch/erigon, which switches quickly to whatever wacky library is optimally performant at the moment.)