Skip to content
ExamSpine

Answer it

P1 a1 cache memory

3 marksYou mark it yourself against the marking points

A bike-share docking station's processor runs a loop millions of times a day. Each time round, it reads the same few instructions and the same few variables (such as the number of free docks) from memory.

Explain how CPU cache memory speeds up this loop, referring to a cache hit and a cache miss. [3]