Practice - Least Laxity First (LLF) Scheduling
Practice Questions
Test your understanding with targeted questions
What is laxity in scheduling?
💡 Hint: Think about what happens to a task as it approaches its deadline.
How do LLF scheduling and EDF scheduling compare in terms of CPU utilization?
💡 Hint: Consider the criteria for scheduling decisions in both algorithms.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does LLF scheduling prioritize?
💡 Hint: Remember the formula for laxity.
True or False: LLF can achieve optimal CPU utilization.
💡 Hint: Think about how LLF schedules tasks based on urgency.
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Challenge Problems
Push your limits with advanced challenges
Consider a system with three tasks: Task 1 with an absolute deadline of 50 ms, remaining execution time of 20 ms, Task 2 with a deadline of 40 ms and execution time of 10 ms, and Task 3 with a deadline of 30 ms and execution time of 5 ms. Calculate the laxity for each task if the current time is 25 ms.
💡 Hint: Use the laxity formula for each task based on the current time.
Discuss the implications of a task with negative laxity in LLF scheduling. What action should the system take if it finds a task with negative laxity?
💡 Hint: Think about the scheduling actions that ensure timely task execution.
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