Summary

1And in Conclusion$\dots$¶

1.1AMAT (Average Memory Access Time)¶

Recall that AMAT stands for Average Memory Access Time. This is a way to measure the performance of a cache system. The formula for AMAT is:

$\text{AMAT} = (\text{Hit Time}) + (\text{Miss Rate}) * (\text{Miss Penalty})$

2Textbook Readings¶

P&H 5.1-5.4, 5.8, 5.9, 5.13

3Additional References¶

• Cache Flowchart

Amazing Illustrations by Ketrina (Yim) Thompson: CS Illustrated Cache Handouts

• Cache Basics

• Cache Associativity

• Cache Misses

4Exercises¶

True/False: If a piece of data is both in the cache and in memory, reading it from cache is faster than reading from memory