Computers and Technology, 06.05.2020 00:21 hannahgrac3
True and False Questions. Give reasons for your answers.
(a) Allowing jumps, branches, and ALU instructions to take fewer clock cycles than the five required by the load instruction will increase pipeline performance under all circumstances.
(b) Trying to allow some instructions to take fewer cycles does not help, since the throughput is determined by the clock cycle. (It is true that the number of pipe stages per instruction affects latency, not throughput.)
(c) Allowing jumps, branches, and ALU operations to take fewer cycles only helps when no loads or stores are in the pipeline, so the benefits are small. (d) Since branches and jumps can take fewer cycles, there is some opportunity for improvement in pipelining performance. (You cannot make ALU instructions take fewer cycles because of the write-back of the result.)
(e) We could improve performance if instead of trying to make instructions take fewer cycles, we explore making the pipeline longer, so that instructions take more cycles, but the cycles are shorter.
Answers: 2
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True and False Questions. Give reasons for your answers.
(a) Allowing jumps, branches, a...
(a) Allowing jumps, branches, a...
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