Homework Answers
1) Ans - Decrease the degree of multiprogramming
Decreasing the degree of multiprogramming will probably decrease the number of page faults and keep the CPU even busier and hence increasing the CPU utilization.
2) Ans - Process Migration
Process migration means executing a process in a distributed computer network.
Data migration means moving a data from one location to another, one format to another or one application to another.
Computational migration is a technique to access remote data in a parallel computer
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نقطة واحدة Consider a demand-paged computer system where the degree of multiprogramming is currently fixed at...
Consider a demand-paged computer system where the degree of mul- tiprogramming is currently fixed at four....
Consider a demand-paged computer system where the degree of mul- tiprogramming is currently fixed at four. The system was recently measured to determine utilization of the CPU and the paging disk. Three alternative results are shown below. For each case, what is happening? Can the degree of multiprogramming be increased to increase the CPU utilization? Is the paging helping? *CPU utilization 13 percent; disk utilization 97 percent *CPU utilization 87 percent; disk utilization 3 percent *CPU utilization 13 percent; disk...
Problem 4- Resource Utilization (16 points) Consider a demand-paged computer system using a virtu...
Problem 4- Resource Utilization (16 points) Consider a demand-paged computer system using a virtual memory management o do only main memory and disk for paging. Suppose the organization running this system can one of the following actions at the present time: afforn policy for (a) Get a faster CPU (b) Get a faster paging disk (c) Decrease the degree of multiprogramming (d) Increase the degree of multiprogramming m was measured to determine the utilization of the CPU and paging disk....
8.27 Consider a demand-paging system with the following time-measured utilizations: CPU utilizati...
Operating Systems
8.27 Consider a demand-paging system with the following time-measured utilizations: CPU utilization Paging disk Other I/O devices 20% 97 7% 5% For each of the following, indicate whether it will (or is likely to) improve CPU utilization. Explain vour answers. Install a faster CPU. Install a bigger paging disk Increase the degree of multiprogramming. Decrease the degree of multiprogramming Install more main memorv. Install a faster hard disk or multiple controllers with multiple hard disks. Add prepaging to...
1. Consider a demand-paging system with the following time-measured utilizations: CPU utilization 20% Paging disk 5%...
1. Consider a demand-paging system with the following time-measured utilizations: CPU utilization 20% Paging disk 5% Other I/O devices 97% Indicate which will improve system utilization and explain your answer. a. Install a faster CPU . b. Install a bigger paging disk. c. Increase the degree of multiprogramming. d. Decrease the degree of multiprogramming. e. Install more main memory. f. Install a faster hard disk or multiple controllers with multiple hard disks. g. Add prepaging to the page-fetch algorithms....
Consider a system where an average process spends 70% of its time waiting for I/O. What...
Consider a system where an average process spends 70% of its time waiting for I/O. What should be the degree of multiprogramming to achieve 95% CPU utilization in the system?
Problem 4- Resource Utilization (16 points) Consider a demand-paged computer system using a virtual memory management o do only main memory and disk for paging. Suppose the organization running this system can one of the following actions at the present time: afforn policy for (a) Get a faster CPU (b) Get a faster paging disk (c) Decrease the degree of multiprogramming (d) Increase the degree of multiprogramming m was measured to determine the utilization of the CPU and paging disk....
Operating Systems
8.27 Consider a demand-paging system with the following time-measured utilizations: CPU utilization Paging disk Other I/O devices 20% 97 7% 5% For each of the following, indicate whether it will (or is likely to) improve CPU utilization. Explain vour answers. Install a faster CPU. Install a bigger paging disk Increase the degree of multiprogramming. Decrease the degree of multiprogramming Install more main memorv. Install a faster hard disk or multiple controllers with multiple hard disks. Add prepaging to...
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