Chapter 6, Problem 20RETC

Explanation of Solution

Effective Access time (EAT):

• EAT is a measure of Hierarchal memory performance.
• A weighted average that utilizes the hit ratio and the relative access time of the levels present in successful order of the memory hierarchy is called as effective access time.

Formula for the effective access time:

The formula for effective access time where the memory contains two levels that includes a main memory and the cache memory is obtained as shown below:

$\text{EAT}\text{=}{\text{H×Access}}_{\text{c}}\text{+}\left(\text{1-H}\right){\text{×Access}}_{\text{MM}}$

In the ab