March test
Beginner
A memory test that walks through every spot in order, writing and reading values in a set pattern.
Novice
A memory test made of steps (march elements). Each step visits every address in rising or falling order and does the same reads and writes at each. Test time grows in proportion to memory size.
Expert
Written in notation like ⇑(r0,w1): ascending order, read expecting 0, then write 1. Different algorithms target different memory fault classes (stuck cells, slow transitions, coupling between cells, address decoder faults). March C− costs 10 operations per cell.