"How Many Servers Do We Need?" — Back-of-the-Envelope Estimation for System Design

"How many servers do we need?" sounds like a question that needs a research project to answer. It doesn't — it needs five minutes of napkin math. Back-of-the-envelope estimation is the habit of turning vague requirements ("we'll have a lot of users") into concrete numbers (queries per second, gigabytes of storage, megabits of bandwidth) before you... Weiterlesen