Consider a hypothetical single-core pipelined processor. The pipeline has 5 stages and each stage takes 1 clock cycle to execute. 5 instructions need to be executed in the processor. The first 4 of those instructions require all 5 pipeline stages. The last instruction requires only the first 4 pipeline stages. What is the minimum number of clock cycles required to execute all 5 instructions? Assume that there are no pipeline stalls.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Consider a hypothetical single-core pipelined processor. The pipeline has 5 stages
and each stage takes 1 clock cycle to execute. 5 instructions need to be executed
in the processor. The first 4 of those instructions require all 5 pipeline stages. The
last instruction requires only the first 4 pipeline stages. What is the minimum
number of clock cycles required to execute all 5 instructions? Assume that there
are no pipeline stalls.
Answer: 9
Transcribed Image Text:Consider a hypothetical single-core pipelined processor. The pipeline has 5 stages and each stage takes 1 clock cycle to execute. 5 instructions need to be executed in the processor. The first 4 of those instructions require all 5 pipeline stages. The last instruction requires only the first 4 pipeline stages. What is the minimum number of clock cycles required to execute all 5 instructions? Assume that there are no pipeline stalls. Answer: 9
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