Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

This problem compares fixed vs. dynamic priorities, and is based on an example by Burns and Baruah (2008). Consider two periodic tasks, where task T1

image text in transcribed

This problem compares fixed vs. dynamic priorities, and is based on an example by Burns and Baruah (2008). Consider two periodic tasks, where task T1 has period p1 = 2, and task T2 has period p2-3. Assume that the execution times are e1 1 and 2 = 1.5. Suppose that the release time of execution of task T1 1s given by ri ,i = 0.5 + 2(i-1) for i = 1,2, -.. Suppose that the deadline of execution i of task T1 is given by . 1,1 2i. Correspondingly, assume that the release times and deadlines for task T2 are T2,i = 3(i-1) and (a) Give a feasible fixed-priority schedule. (b) Show that if the release times of all executions of task T are reduced by 0.5, then no fixed-priority schedule is feasible. (c) Give a feasible dynamic-priority schedule with the release times of task T1 reduced to ri ,i = 2(i-1) This problem compares fixed vs. dynamic priorities, and is based on an example by Burns and Baruah (2008). Consider two periodic tasks, where task T1 has period p1 = 2, and task T2 has period p2-3. Assume that the execution times are e1 1 and 2 = 1.5. Suppose that the release time of execution of task T1 1s given by ri ,i = 0.5 + 2(i-1) for i = 1,2, -.. Suppose that the deadline of execution i of task T1 is given by . 1,1 2i. Correspondingly, assume that the release times and deadlines for task T2 are T2,i = 3(i-1) and (a) Give a feasible fixed-priority schedule. (b) Show that if the release times of all executions of task T are reduced by 0.5, then no fixed-priority schedule is feasible. (c) Give a feasible dynamic-priority schedule with the release times of task T1 reduced to ri ,i = 2(i-1)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Oracle 10g Database Administrator Implementation And Administration

Authors: Gavin Powell, Carol McCullough Dieter

2nd Edition

1418836656, 9781418836658

More Books

Students also viewed these Databases questions

Question

LO26.4 Analyze the economic effects of tariffs and quotas.

Answered: 1 week ago