P1, P2, P3 process are executing 2sec for Processor-bound and 2sec for 1/O bound execution. Process P1, P2,P3 are repeating this execution format for 4times,2times,3times respectively. Find the CPU utilization withmulti-programming and without multi-programming and justify your answer.

Multi-programming is a process of loading several processes into memory simultaneously. When a…

Answered: nis execution f g and without

Engineering

Computer Science

nis execution f g and without

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter11: Operating Systems

Section: Chapter Questions

Problem 23VE

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Processor R is a 64-bit RISC processor with a 2 GHz clock rate. The average instruction requires one cycle to complete, assuming zero wait state memory accesses. Processor C is a CISC processor with a 1.8 GHz clock rate. The average simple instruction requires one cycle to complete, assuming zero wait state memory accesses. The average complex instruction requires two cycles to complete, assuming zero wait state memory accesses. Processor R can’t directly implement the complex processing instructions of Processor C. Executing an equivalent set of simple instructions requires an average of three cycles to complete, assuming zero wait state memory accesses. Program S contains nothing but simple instructions. Program C executes 70% simple instructions and 30% complex instructions. Which processor will execute program S more quickly? Which processor will execute program C more quickly? At what percentage of complex instructions will the performance of the two processors be equal?
Suppose we have a four (4) core processor and all processes are designed to be multi-threaded. Now, like all processors with more than one core, they have the ability to perform multiple tasks at the same time. If there are four (4) with the following CPU and I/O cycles according to the table below, calculate the times for the Priority scheduling process (view image): Where A,B,C,D correspond to A=6, B=3, C=5, D=8.
Q3. “There is a mechanism in which CPU relinquishes the control over the buses for carrying out various operations between memory unit and I/O unit."Justify your answer and explain such process in detail with the help of suitable diagram.
Delve into the concept of speculative multithreading and its role in dynamic multithreading. How does it improve the utilization of execution units in a CPU?
In the context of pipelining, explain the differences between dynamic and static scheduling of instructions. What are the pros and cons of each approach?
I need the answer as soon as possible
b. The critical-section problem could be solved simply in a single-core environment by preventing interrupts from occurring while a shared variable was being modified. Hence, this ensure the current sequence of instructions would be allowed to execute in order without preemption. Since there are no other instructions would be run, unexpected modifications could not be made to the shared variable. Explain whether this solution is suitable for multiprocessor environment.
Explain the differences between the following types of multiprocessing. Can you tell me the pros and cons of utilizing many CPUs at once?
Question 1a. The earlier machines were using the hardwired mechanism to control the function of processes of the computer. Discuss the components of the Von Neumann Architecture that moved the functions of the computers from a Special purpose machine to a universal (General) machine. b. Almost all computer users think during multitasking processes, the CPU is actually processing all tasks given to concurrently. Explain to the ordinary user, with the help of one memory management technique and interrupts, what really happens during multitasking. Question 2a. Balancing performance between processor, memory, buses, and peripheral devices, is almost impossible as due to constant evolving nature of certain two major factors. Identify these factors and discuss how their nature hinders the attempt to keep these devices in balance. b. During an optimal use of the computer, where there are several applications running the CPU usage would usually be amount only 37%, which means that the CPU is…
Asymmetric and symmetric multiprocessing are also possible. Can you explain the pros and cons of utilising many CPUs in a same program?
Question 1a.The earlier machines were using the hardwired mechanism to control the function of processes of the computer. Discuss the components of the Von Neumann Architecture that moved the functions of the computers from Special purpose machine to universal (General) machine. b.Almost all computer users think during multitasking processes, the CPU is actually processing all tasks given to concurrently. Explain to the ordinary user,with the help of one memory management techniqueand interrupts, what really happens during multitasking.
2. An implementation of the above RISC-V microprocessor has been designed where the supported instructions are classified as follows with regard to the number of cycles required to execute: Arithmetic & Logic: 4 cycles Memory Access: 5 cycles 3 cycles Branching: System Calls: 1 cycle What is the average CPI for this microprocessor? (includes lui, add, addi, or, ori, sub, and, (includes all loads and stores) (includes blt, beq, bne) (includes ecall) andi)