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Consider a demand-paging system with the following time-measured utilizations:   CPU utilization 20% Paging disk 97.7% Other I/O devices 5%   For each of the following, say whether it will (or is likely to) improve CPU utilization. Explain your answers.  Install a faster CPU Install a bigger paging disk.  Increase the degree of multiprogramming. Decrease the degree of multiprogramming.  Install more main memory. Install a faster hard disk or multiple controllers with multiple hard disks. Add prepaging to the page fetch algorithms. Increase the page size.

Consider a demand-paging system with the following time-measured utilizations:   CPU utilization 20% Paging disk 97.7% Other I/O devices 5%   For each of the following, say whether it will (or is likely to) improve CPU utilization. Explain your answers.  Install a faster CPU Install a bigger paging disk.  Increase the degree of multiprogramming. Decrease the degree of multiprogramming.  Install more main memory. Install a faster hard disk or multiple controllers with multiple hard disks. Add prepaging to the page fetch algorithms. Increase the page size.

Database System Concepts
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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  1. Consider a demand-paging system with the following time-measured utilizations:

 

CPU utilization 20%

Paging disk 97.7%

Other I/O devices 5%

 

For each of the following, say whether it will (or is likely to) improve CPU utilization. Explain your answers. 

  1. Install a faster CPU
  2. Install a bigger paging disk. 
  3. Increase the degree of multiprogramming.
  4. Decrease the degree of multiprogramming. 
  5. Install more main memory.
  6. Install a faster hard disk or multiple controllers with multiple hard disks.
  7. Add prepaging to the page fetch algorithms.
  8. Increase the page size.
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