CS 461/561 Computer Architecture
CS 461/561 Computer Architecture
In Part 1, average memory access time was presented as an indirect measure of memory performance. The basic formula for calculating AMAT is
AMAT = time for a hit + (miss rate x miss penalty).
In Part 2, we expanded the formula to encompass a level 1 and level 2 cache. The expanded formula for a 2-level cache is
AMAT = Hit timeL1 + (Miss rateL1 x (Hit timeL2 + (Miss rateL2 x Miss penaltyL2)))
1. Continue expanding the formula and derive the full calculation for a 3-level cache.
(10 points)
2. The following table defines the profile for a multilevel cache hierarchy.
Using the information in the table, calculate the average memory access time for this memory hierarchy. (10 points)
SAMPLE ASSIGNMENT
