All mock tests are FREE till 31 December — register to save your progress
Unit 2 · Computer System Architecture Paper 2 CS · September 2022

Consider a memory system with addresses spaced at a distance of m (stride), T = bank cycle time and n = number of banks. Then the average data access time per word in a synchronous (interleaved) organisation is

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: A. t = m·T/n for m ≪ n; t = T for m ≫ n

Explanation

For a small stride, consecutive accesses go to different banks and overlap, giving m·T/n per word. For a large stride, accesses keep hitting the same bank, so each word costs a full cycle T.

More Computer System Architecture questions