A 32-bit computer has a memory of 256 KB and a cache line size of 64 bytes. The memory cache access time is 5ns. This cache is 4-way associative and use LRU as a replacement algorithm. a) What is the number of lines and sets of this memory cache? b) What is the block size transferred between the cache memory and the main memory? c) If the time to transfer a line to cache memory is 200 ns, what is the hit ratio needed to obtain an average access time of 20 ns?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter11: Operating Systems
Section: Chapter Questions
Problem 21VE
icon
Related questions
Topic Video
Question

A 32-bit computer has a memory of 256 KB and a cache line size of 64 bytes. The memory cache access time is 5ns. This cache is 4-way associative and use LRU as a replacement algorithm.

a) What is the number of lines and sets of this memory cache?

b) What is the block size transferred between the cache memory and the main memory?

c) If the time to transfer a line to cache memory is 200 ns, what is the hit ratio needed to obtain an average access time of 20 ns?

4. A 32-bit computer has a memory of 256 KB and
a cache line size of 64 bytes. The memory cache
access time is 5ns. This cache is 4-way
associative and use LRU as a replacement
algorithm.
a) What is the number of lines and sets of this
memory cache?
b) What is the block size transferred between
the cache memory and the main memory?
c) If the time to transfer a line to cache memory
is 200 ns, what is the hit ratio needed to obtain
an average access time of 20 ns?
Transcribed Image Text:4. A 32-bit computer has a memory of 256 KB and a cache line size of 64 bytes. The memory cache access time is 5ns. This cache is 4-way associative and use LRU as a replacement algorithm. a) What is the number of lines and sets of this memory cache? b) What is the block size transferred between the cache memory and the main memory? c) If the time to transfer a line to cache memory is 200 ns, what is the hit ratio needed to obtain an average access time of 20 ns?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Instruction Format
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Systems Architecture
Systems Architecture
Computer Science
ISBN:
9781305080195
Author:
Stephen D. Burd
Publisher:
Cengage Learning