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Computer Engineering
A computer has a cache, main memory, and a disk used for virtual Memory • An access to the cache takes 10 ns An access to main memory takes 100 ns An access to the disk takes 10,000 ns Suppose the cache hit ratio is 0.9 and the main memory hit ratio is 0.8. What is the effective access time (EAT) in ns required to access a referenced word on this system?

A computer has a cache, main memory, and a disk used for virtual Memory • An access to the cache takes 10 ns An access to main memory takes 100 ns An access to the disk takes 10,000 ns Suppose the cache hit ratio is 0.9 and the main memory hit ratio is 0.8. What is the effective access time (EAT) in ns required to access a referenced word on this system?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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4. Practice Problem: • A computer has a cache, main memory, and a disk used for virtual Memory • An access to the cache takes 10 ns • An access to main memory takes 100 ns • An access to the disk takes 10,000 ns Suppose the cache hit ratio is 0.9 and the main memory hit ratio is 0.8. What is the effective access time (EAT) in ns required to access a referenced word on this system?
Transcribed Image Text:4. Practice Problem: • A computer has a cache, main memory, and a disk used for virtual Memory • An access to the cache takes 10 ns • An access to main memory takes 100 ns • An access to the disk takes 10,000 ns Suppose the cache hit ratio is 0.9 and the main memory hit ratio is 0.8. What is the effective access time (EAT) in ns required to access a referenced word on this system?
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