How a scaling decision is made

Four steps, repeated every ten seconds, from request rate to pods. Drag the slider, then try a load of your own.

The four stages

First, read the request rate.

A long row of telephone operators seated at a switchboard that runs the length of a hall, Salt Lake City, 1907.
Telephone operators at a new switchboard, Salt Lake City, 1907. Capacity was people at desks, and the busiest hour decided how many.

Try a load

Pods needed–
Ready in30 seconds
Requests lost if you start from two pods–
A hand-coloured print of a crowd in top hats and bonnets queuing behind a railing at a ticket office.
A queue at a ticket office, from Henry Monnier's Galerie Théâtrale, about 1828. When the sale opens, the whole queue arrives together.

Pictures: “Telephone switchboard 6 Oct 1907 Salt Lake City” by The Salt Lake Herald, and “Une Queue” by Henry Monnier, printed by E. Ardit. Both public domain, via Wikimedia Commons, shown in greyscale.