Discussion
Put the steps of a schedulability analysis in order.
1. Apply the utilisation bound test 2. Measure or bound each task's worst-case execution time 3. Compute response times by iteration if the bound test is inconclusive 4. Assign priorities by deadline monotonic order
Answer: C
Correct answer: 2, 4, 1, 3
Execution times must be known before anything can be computed. Priorities are then assigned, since the analysis depends on the ordering. The utilisation bound test is tried first because it is cheap, and response time analysis is used only where the bound test proves inconclusive - which is whenever the utilisation lies between the bound and unity.
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