# Queueing theory for fun and practice (#1): square root staffing, Little's law

DevFeed: [Queueing theory for fun and practice (#1): square root staffing, Little's law](<https://devfeed.tech/articles/queueing-theory-for-fun-and-practice-1-square-root-staffing-little-s-law-24776.md>)

Original publisher: [Read original article](<https://dev.cheremin.info/2020/07/queueing-theory-for-fun-and-practice-1.html>)

Author: Ruslan Cheremin (noreply@blogger.com)

Published: 2020-07-24T12:35:00Z

Content type: tutorial

Language: ru

Sources: [\>рабочие заметки](<https://devfeed.tech/sources/source-2.md>)

Topics: [queueing theory](<https://devfeed.tech/topics/queueing-theory.md>)

Tags: [operations](<https://devfeed.tech/tags/operations.md>), [queueing-theory](<https://devfeed.tech/tags/queueing-theory.md>), [research](<https://devfeed.tech/tags/research.md>), [square](<https://devfeed.tech/tags/square.md>), [tag-88bad1e8f274](<https://devfeed.tech/tags/tag-88bad1e8f274.md>), [tag-e5017782b67f](<https://devfeed.tech/tags/tag-e5017782b67f.md>), [theory](<https://devfeed.tech/tags/theory.md>)

## AI overview

This introductory article begins a series on queueing theory, presenting the author's plan to explain simple, broadly applicable principles, their practical uses, and the assumptions behind them. The planned topics include terminology, capacity and scaling, Little's law, response time versus utilization, and Erlang systems. The author notes that the material is an informal personal summary rather than an expert treatment.

## Source excerpt

На 28-ом этаже центра разработки крупного инвестиционного банка есть 8 туалетных кабинок для людей, идентифицирующих себя с мужским гендером...