A single-cycle processor takes 100ns per instruction. It is perfectly pipelined into 10 stages with pipeline registers that take 2ns. What change in instruction latenc expect compared to the single-cycle processor? O Same latency as single-cycle processor 1 O 10% speedup O 20% speedup O 20% slowdown Question 13 A single-cycle processor takes 100ns per instruction. It is perfectly pipelined into 10 stages with pipeline registers that take 2ns and can be kept 60% full. What chang instruction throughput can you expect compared to the single-cycle processor? O 10x speedup O 60% slowdow O 60% speedup O 5x speedup Question 14 4 Does the pipelined processor execute instructions in an atomic and in-order manner?

A single-cycle processor takes 100ns per instruction. It is perfectly pipelined into 10 stages with pipeline registers that take 2ns. What change in instruction latenc expect compared to the single-cycle processor? O Same latency as single-cycle processor 1 O 10% speedup O 20% speedup O 20% slowdown Question 13 A single-cycle processor takes 100ns per instruction. It is perfectly pipelined into 10 stages with pipeline registers that take 2ns and can be kept 60% full. What chang instruction throughput can you expect compared to the single-cycle processor? O 10x speedup O 60% slowdow O 60% speedup O 5x speedup Question 14 4 Does the pipelined processor execute instructions in an atomic and in-order manner?

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

Problem 1PE

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A. The following measurements have been made using an architecture simulator for a processor design that is projected to have a clock rate of 1 GHz. What is the design's CPI? Instruction Frequency of CPI Class Occurrence R-type Load Branch 1 37% 25% 4 18% Store 20% В. vHow does this compare to using branch prediction to shave 1 cycle off the branch latency, but also increasing the number of cycles a store operation takes by 2 cycles?
Why is a single instruction in a pipeline datapath not shorter than that in a multi-cycle datapath even though totally a pipeline mechanism performs better. Please select the correct choice. a - Because of quicker time of execution of large number of instructions b - Because pipelined CPUs generally work at a higher clock frequency than the RAM clock frequency, c - Because it is possible to execute multiple instructions sequentially d - Because in a pipeline architecture, 1 instruction abandons the pipeline in each cycle, so the CPI will be of 1. e - Because increase in the number of pipeline stages increases the number of instructions executed simultaneously.
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Consider a non-pipelined processor with a clock rate of 2.5 gigahertz and average cycles per instruction of 4. The same processor is upgraded to a pipelined processor with five stages, but due to the internal pipeline delay, the clock speed is reduced to 2 gigahertz. Assume there are no stalls in the pipeline. What is the speed up achieved in this pipelined processor? 5
clock cycle at which the first of the instructions is fetched as clock cycle 1. Assume that if one instruction reads a register during the same clock cycle as another instruction is writing it, the new value will be read. Do not reorder the instructions. Instructions are fetched and executed exactly in the order given below, with the pipeline stalling if necessary.addi $s2, $s2, 1li $s6, 5add $s1, $s2, $s3move $s5, $s6lw $t1, 0($s5)
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Suppose we had a processor design with 5 stages where each stage takes the following amount of time: IF: 400 ps ID: 200 ps EX: 300 ps MEM: 500 ps WB: 200 psQ1: If you choose a pipelined design, what is the CPI? Assume that we have enough instructions such that the brief ramp up period at the beginning and the ramp down period at the end with less than 100% utilization does not matter. Q2: If you choose a pipelined design, what is the average execution time per instruction in picoseconds?
A pipelined processor executing with a constant clock rate has 5 stages. The five stages are Fetch, Decode, Execute, Memory Access and Write Back. Latency of the stages are 100, 80, 120, 150 and 140 nanoseconds respectively. If a register which has a delay of 10 ns is used between the different stages of the pipelined processor. The time taken to execute 2001 instruction for a pipelined processor is microseconds.
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