Technically HyperLogLog works on bitmaps, this library leverages this fact and uses Redis bitmaps instead of an in-memory implementation. Although we are fans

Technically HyperLogLog works on bitmaps, this library leverages this fact and uses Redis bitmaps instead of an in-memory implementation. Although we are fans of Redis, if you implement it natively you can avoid network latency. Implementing it natively is not a problem because of the commutative nature of HyperLogLog Further, If one is planning to use Redis it will be better to use built-in HyperLogLog datastructure provided by Redis 2.8.9 as documented here http://antirez.com/news/75 http://antirez.com/news/75