Processor/CPU Management 1. Five processes, J1, J2, J3, J4 and J5. arrive in the Ready Queue in sequence, one second apart. Each job takes 1 millisecond to load into memory. 2. Each job will take 10, 2, 3, 1, 5 seconds to run respectively. Questions A. Create a Google Sheet where each column represents a Job and reach row represents a second. B. Show the state of the Ready Queue in the 7th second, the 11th second and the 20th second using the First Come, First Served, Shortest Job Next, Shortest Remaining Time First, amd Round Robin with time quantum of 2 seconds. C. Which one is most efficient? Discuss advantage and disadvantage. Double spaced, one page. II In a single user dedicated system such as a personal computer, it is possible for the user to detect if a program is in an infinite loop and stop it manually. Another solution is for the system to terminate an infinite loop automatically. But there are legitimate situations where a program runs for a very long time. Can you propose a way to terminate a program in an infinite loop automatically? Maybe not detecting all of them but at least some of them? Hint: Discuss the potential for those programs that 1. Consume lots of resources (what kind of resources?) in an infinite loop. What happens when resources are consumed ? and 2. Consume no resource except looping needlessly.
Processor/CPU Management 1. Five processes, J1, J2, J3, J4 and J5. arrive in the Ready Queue in sequence, one second apart. Each job takes 1 millisecond to load into memory. 2. Each job will take 10, 2, 3, 1, 5 seconds to run respectively. Questions A. Create a Google Sheet where each column represents a Job and reach row represents a second. B. Show the state of the Ready Queue in the 7th second, the 11th second and the 20th second using the First Come, First Served, Shortest Job Next, Shortest Remaining Time First, amd Round Robin with time quantum of 2 seconds. C. Which one is most efficient? Discuss advantage and disadvantage. Double spaced, one page. II In a single user dedicated system such as a personal computer, it is possible for the user to detect if a program is in an infinite loop and stop it manually. Another solution is for the system to terminate an infinite loop automatically. But there are legitimate situations where a program runs for a very long time. Can you propose a way to terminate a program in an infinite loop automatically? Maybe not detecting all of them but at least some of them? Hint: Discuss the potential for those programs that 1. Consume lots of resources (what kind of resources?) in an infinite loop. What happens when resources are consumed ? and 2. Consume no resource except looping needlessly.
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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Transcribed Image Text:Processor/CPU Management
1. Five processes, J1, J2, J3, J4 and J5. arrive in the Ready Queue in sequence, one second apart. Each job takes 1
millisecond to load into memory.
2. Each job will take 10, 2, 3, 1, 5 seconds to run respectively.
Questions
A. Create a Google Sheet where each column represents a Job and reach row represents a second.
B. Show the state of the Ready Queue in the 7th second, the 11th second and the 20th second using the First Come, First
Served, Shortest Job Next, Shortest Remaining Time First, amd Round Robin with time quantum of 2 seconds.
C. Which one is most efficient? Discuss advantage and disadvantage. Double spaced, one page.
II
In a single user dedicated system such as a personal computer, it is possible for the user to detect if a program is in an
infinite loop and stop it manually. Another solution is for the system to terminate an infinite loop automatically. But there
are legitimate situations where a program runs for a very long time. Can you propose a way to terminate a program in an
infinite loop automatically? Maybe not detecting all of them but at least some of them? Hint: Discuss the potential for
those programs that 1. Consume lots of resources (what kind of resources?) in an infinite loop. What happens when
resources are consumed ? and 2. Consume no resource except looping needlessly.
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