There are six processes in three priority classes. Class 1 has the highest priority. (The amount of CPU time needed by each process is written in brackets.) ● Class 1: II₁ (13 ms), II3 (8 ms), II6 (6 ms) Class 2: II₂ (10 ms), II5 (4 ms) Class 3: II4 (12 ms) The system is using the following algorithm: The scheduler picks a process from the highest (non-empty) class. To schedule processes within the same class, the Round-Robin algorithm is used with quantum 5 ms. Process switch takes 1 ms. (a) Draw the schedule for the above processes on a timeline. (b) Mirko decided to modify the above algorithm: After each burst (i.e. when the quantum experies) the process is degraded by one class (unless it is already in Class 3). Draw the schedule for Mirko's modified algorithm.

There are six processes in three priority classes. Class 1 has the highest priority. (The amount of CPU time needed by each process is written in brackets.) ● Class 1: II₁ (13 ms), II3 (8 ms), II6 (6 ms) Class 2: II₂ (10 ms), II5 (4 ms) Class 3: II4 (12 ms) The system is using the following algorithm: The scheduler picks a process from the highest (non-empty) class. To schedule processes within the same class, the Round-Robin algorithm is used with quantum 5 ms. Process switch takes 1 ms. (a) Draw the schedule for the above processes on a timeline. (b) Mirko decided to modify the above algorithm: After each burst (i.e. when the quantum experies) the process is degraded by one class (unless it is already in Class 3). Draw the schedule for Mirko's modified algorithm.

Operations Research : Applications and Algorithms

4th Edition

ISBN:9780534380588

Author:Wayne L. Winston

Publisher:Wayne L. Winston

Chapter20: Queuing Theory

Section: Chapter Questions

Problem 17RP

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