A single cycle processor has a period of 15 ns. The same processor can be designed with a multicycle pipeline implementation with a period of 5 ns. Assuming no hazards / stalls, what is the minimum number of instructions needed before any speedup is realized? How many instructions (with no stalls or hazards) would you need to execute before the multicycle implementation gives you 3x speedup relative to a single cycle processor? What is the maximum speed up this pipeline can achieve?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter4: Processor Technology And Architecture
Section: Chapter Questions
Problem 2PE: If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the...
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  1. A single cycle processor has a period of 15 ns. The same processor can be designed with a multicycle pipeline implementation with a period of 5 ns.
    1. Assuming no hazards / stalls, what is the minimum number of instructions needed before any speedup is realized?
    2. How many instructions (with no stalls or hazards) would you need to execute before the multicycle implementation gives you 3x speedup relative to a single cycle processor?
    3. What is the maximum speed up this pipeline can achieve?
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