[subprotocol]

It's used everywhere in analytics applications and particularly noticeable at scale. For specific example- We use roaring bitmaps (also from Lemire) in an inverted index to make count queries instant (depending on the query and encoding, top-n queries do 20B events per second per core in our application).

[davidgould]

Could you elaborate on this a little? I'm aware of roaring bitmaps, but not understanding the problem and solution you are describing. Thanks!