Q5) Consider the three processes in the figure below. Illustrate the scheduling of these three processes using rate-monotonic scheduling (RM) and earliest deadline-first (EDF) scheduling A A1 A2 A3 A4 A5 B B1 B2 B3 B4 20 30 40 50 60 70 80 90 100 110 120 130 RY

Q5) Consider the three processes in the figure below. Illustrate the scheduling of these three processes using rate-monotonic scheduling (RM) and earliest deadline-first (EDF) scheduling A A1 A2 A3 A4 A5 B B1 B2 B3 B4 20 30 40 50 60 70 80 90 100 110 120 130 RY

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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Concept explainers

Dynamic Multithreading

An algorithm that executes a single instruction in a uniprocessor system is called a serial algorithm. In the case of a multiprocessor computer system, multiple instructions are executed in parallel. A multithreaded algorithm is an algorithm that enables multiple instances of the code to be executed concurrently.Multithreading is a concept that allows the CPU to execute threads independently while sharing similar resources. It is an important CPU feature that works on the process. Thread is a sequence of instructions that executes in parallel with other threads. Because of multithreading, multiple tasks can be performed within a single process.

Question

Q5) Consider the three processes in the figure below. Illustrate the scheduling of these three
processes using rate-monotonic scheduling (RM) and earliest deadline-first (EDF)
scheduling
A A1
A2
A3
A4
A5
B B1
B2
B3
B4
0 10 20 30 40
50
60 70
80
90 100 110 120 130

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Three periodic processes of an operating system has P(burst time, period) as follows: P1(4,20), P2(6,10), P3(12,30). Which of the following is true when these processes are scheduled with Rate-Monotonic scheduling algorithm that assigns priorities proportional to periods (shorter period has higher priority). a)No process misses a deadline b)Only P3 misses its deadline c)P1, P2 and P3 all miss their deadlines d)P2 and P3 both miss their deadlines
Draw the corresponding Gantt diagrams for this scheduling algorithms;- Round Robin q=1 (1ms Quantum).
Four processes arrive at the same time with their priorities, execution times and I/0 times given in the table below. Assuming a Round-Robin Scheduling works with a quantum time of 3, but the scheduler selects the with highest priority from the queue (NOT those arrived earliest), other than currently pre-empted process, at each turn3; process a-)Draw the timeline for CPU- and I/O- bursts for these processes b-)Calculate average turn-around time Exec 1/0 Exec /0 Process Priority 2. P1 10 4 P2 7. 4. 4 P3 1 10 1 4 Pa