A computer has a level 1 cache with an access time of 2 cycles and an average hit rate of 90% and DRAM access time is 50 cycles. a. What is the average memory access time for this computer? Ans: cycles (Give answer with two precision format, e.g. 1.23) b. If the system is upgraded with a level 2 cache with a hit ratio of 85% and an access time of 12 cycles. What is the new average memory access time for this computer? Ans: cycles (Give answer with two precision format, e.g. 1.23) Note: Addition of L2 cache has no impact on access time for DRAM.
A computer has a level 1 cache with an access time of 2 cycles and an average hit rate of 90% and DRAM access time is 50 cycles. a. What is the average memory access time for this computer? Ans: cycles (Give answer with two precision format, e.g. 1.23) b. If the system is upgraded with a level 2 cache with a hit ratio of 85% and an access time of 12 cycles. What is the new average memory access time for this computer? Ans: cycles (Give answer with two precision format, e.g. 1.23) Note: Addition of L2 cache has no impact on access time for DRAM.
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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Note: This is referring to ARM architecture.
![A computer has a level 1 cache with an access time of 2 cycles and an average hit rate of 90%, and DRAM access time is 50 cycles.
a. What is the average memory access time for this computer?
**Ans:** [ ] cycles
(Give answer with two precision format, e.g., 1.23)
b. If the system is upgraded with a level 2 cache with a hit ratio of 85% and an access time of 12 cycles, what is the new average memory access time for this computer?
**Ans:** [ ] cycles
(Give answer with two precision format, e.g., 1.23)
**Note:** Addition of L2 cache has no impact on access time for DRAM.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F26fe8f9d-a829-4ffe-94fa-74d9058056a0%2Fc431ec90-78b7-4569-82ba-4695ca0a5187%2Fi6ulei_processed.png&w=3840&q=75)
Transcribed Image Text:A computer has a level 1 cache with an access time of 2 cycles and an average hit rate of 90%, and DRAM access time is 50 cycles.
a. What is the average memory access time for this computer?
**Ans:** [ ] cycles
(Give answer with two precision format, e.g., 1.23)
b. If the system is upgraded with a level 2 cache with a hit ratio of 85% and an access time of 12 cycles, what is the new average memory access time for this computer?
**Ans:** [ ] cycles
(Give answer with two precision format, e.g., 1.23)
**Note:** Addition of L2 cache has no impact on access time for DRAM.
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