Consider three process P, Q and R. Process Q executes for 8 milliseconds with the arrival time of 0 milliseconds before process P arrived and process R with executes for 4 milliseconds before process P arrived and finally process P arrives and gets completed with burst time of 6 milliseconds. Processes use the shortest remaining time first scheduling algorithm. If two processes are having the same computation time, then process P is given the least priority. The sum of minimum burst time for process Q millisecond (Burst time is in and Ris integer),

Consider three process P, Q and R. Process Q executes for 8 milliseconds with the arrival time of 0 milliseconds before process P arrived and process R with executes for 4 milliseconds before process P arrived and finally process P arrives and gets completed with burst time of 6 milliseconds. Processes use the shortest remaining time first scheduling algorithm. If two processes are having the same computation time, then process P is given the least priority. The sum of minimum burst time for process Q millisecond (Burst time is in and Ris integer),

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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Consider the following set of processes, with the length of the CPU burst given in milliseconds Process Burst Time Priority P1 5 1 P2 2 3 P3 1 3 P4 1 2 P5 10 4 The processes are assumed to have arrived in the order P1, P2, P3, P4, P5 all at time 0. Draw four Gantt charts that illustrate the execution of these processes using the following scheduling algorithms: FCFS, SJF, and RR (quantum = 3). What is the turnaround time of each process for each of the scheduling algorithms in part a? what is the waiting time of each process for each of the scheduling algorithms in part a? Which of the algorithms results in the minimum average waiting time (over all processes)?
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