represent: • A handle to a compute resource (aka, scheduler) • A unit of lazy async work (aka, sender) • A completion handler (aka, receiver) • A small, initial set of generic async algorithms: • { unifex::static_thread_pool pool{8}; ex::scheduler auto sched = pool.get_scheduler(); ex::sender auto work = ex::when_all( ex::then(ex::schedule(sched), [] { return compute_intensive(0); { unifex::static_thread_pool pool{8}; ex::scheduler auto sched = pool.get_scheduler(); ex::sender auto work = ex::when_all( ex::then(ex::schedule(sched), [] { return compute_intensive(0);

co-routines). • Channel allows a unidirectional flow of information between two end-points: the Sender and the Receiver. • Channel Type: SPSC, SPMC, MPMC, MPSC. Senders Receive Senders Senders

13 https://github.com/Altinity/clicktail Created by my friends at Altinity Replaced HoneyComb “Sender” with Clickhouse Added Audit Log Support Meet ClickTail © 2018 Percona. 14 Installing ClickTail