Consider we have two levels of cache, backed by a main memory (RAM). You are given with the following information about the access time for different level in the memory hierarchy L1 cache costs 1 cycle to access and has a miss rate of 8% L2 cache costs additional 5 cycles to access and has a miss rate of 4% RAM costs additional 40 cycles to access (and has a miss rate of 0%) What is the average memory access time (AMAT)?
Consider we have two levels of cache, backed by a main memory (RAM). You are given with the following information about the access time for different level in the memory hierarchy L1 cache costs 1 cycle to access and has a miss rate of 8% L2 cache costs additional 5 cycles to access and has a miss rate of 4% RAM costs additional 40 cycles to access (and has a miss rate of 0%) What is the average memory access time (AMAT)?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Consider we have two levels of cache, backed by a main memory (RAM). You are given with the following information about the access time for different level in the memory hierarchy
- L1 cache costs 1 cycle to access and has a miss rate of 8%
- L2 cache costs additional 5 cycles to access and has a miss rate of 4%
- RAM costs additional 40 cycles to access (and has a miss rate of 0%)
What is the average memory access time (AMAT)?
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