Hi.

Facebook release their LevelDB fork RocksDB to the public (BSD license).

It seems to have several advantages over LevelDB, which I think would also
help libbitcoin, like better read/write speed when you have low amount of
memory / more data than RAM.

http://rocksdb.org
https://github.com/facebook/rocksdb/wiki/Performance-Benchmarks

On the first look the interface didn't change much. I guess it shouldn't be
hard to implement, s/leveldb/rocksdb/g maybe? xD

What do you think? Worth a try?

Regards