Queue lag

The core idea

Queue lag is lesson 14.04 in the module "Queues and events". These notes are a placeholder: replace this file with your own writing and the page will render it with the course styling.

The shape that works well for a lesson is short. Open with the one idea a reader should leave with, show where it bites in a real system, name the tradeoff, and finish with the default this course recommends.