Practice Earliest Deadline First (edf) Scheduling (7.5.1) - Real-Time Scheduling Algorithms
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Earliest Deadline First (EDF) Scheduling

Practice - Earliest Deadline First (EDF) Scheduling

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does EDF stand for?

💡 Hint: Focus on the scheduling method that prioritizes deadlines.

Question 2 Easy

What is the optimality criterion for EDF scheduling?

💡 Hint: Think about the flexibility of EDF.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the principle behind the EDF scheduling algorithm?

Tasks are scheduled based on execution time.
Tasks are scheduled based on the earliest deadline.
Tasks have fixed priorities.

💡 Hint: Focus on how tasks are ordered for execution in EDF.

Question 2

If the total utilization of tasks in EDF is greater than 100%, what can be concluded?

True
False

💡 Hint: Think about the implications of exceeding CPU capacity.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a task set with three tasks. Task A has a period of 6 ms and a WCET of 2 ms, Task B has a period of 4 ms and a WCET of 1 ms, and Task C has a period of 8 ms and a WCET of 3 ms. Determine if the system can be scheduled under EDF.

💡 Hint: Focus on computing the total utilization based on WCET and period.

Challenge 2 Hard

In a real-time system with EDF scheduling, explain how you would manage resource contention among tasks and implement priority inversion solutions.

💡 Hint: Consider how priority inversion affects task scheduling when multiple tasks access shared resources.

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Reference links

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