HTTP top: report statistics about HTTP connections within TCP connections (pcap)
httop => conn-tracker => http-conn => http-stream(client & server) => create-stats
-+- httop: packet ingestion manager | +-+- connection tracker: manages tcp connections processing http request/responses | +-+- http connection: manages one set of server and client http streams | +--- http stream: manages either a client or a sever http stream
http streams share...
- a queue of request sent times (to track elapsed time to respond)
- http statistics