A group of students were debating the efficiency of the five-stage pipeline when one student pointed out that not all instructions are active in every stage of the pipeline. After deciding to ignore the effects of hazards, they made the following five statements. Which ones are correct? Justify your observations. i) Allowing jumps, branches, and ALU instructions to take fewer stages than the five required 11 by the load instruction will increase pipeline performance under all circumstances. ii) Trying to allow some instructions to take fewer cycles does not help, since the throughput 1I is determined by the clock cycle; the number of pipe stages per instruction affects latency, not throughput. Allowing jumps, branches, and ALU operations to take fewer cycles only helps when no 1] loads or stores are in the pipeline, so the benefits are small. iv) Instead of trying to make instructions take fewer cycles, we should explore making the 12] pipeline longer, so that instructions take more cycles, but the cycles are shorter. This could improve performanc

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...
icon
Related questions
Question
Q25. A group of students were debating the efficiency of the five-stage pipeline when one student pointed out that not all instructions are active in every stage of the pipeline. After deciding to ignore the effects of hazards, they made the following five statements. Which ones are correct? Justify your observations. i) Allowing jumps, branches, and ALU instructions to take fewer stages than the five required 11 by the load instruction will increase pipeline performance under all circumstances. ii) Trying to allow some instructions to take fewer cycles does not help, since the throughput 1I is determined by the clock cycle; the number of pipe stages per instruction affects latency, not throughput. Allowing jumps, branches, and ALU operations to take fewer cycles only helps when no 1] loads or stores are in the pipeline, so the benefits are small. iv) Instead of trying to make instructions take fewer cycles, we should explore making the 12] pipeline longer, so that instructions take more cycles, but the cycles are shorter. This could improve performance.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY