Machine-translated by Google. Questions are authored in English.
Top

Discussion

The critical instant for a task under fixed priority scheduling occurs when it is released

  • A.simultaneously with all higher priority tasks
  • B.immediately after all higher priority tasks have completed
  • C.exactly midway between two releases of the next higher priority task
  • D.at a moment when the processor is idle

Answer: A

The worst interference a task can suffer arises when everything above it arrives at the same moment, so the response time computed for that phasing is the worst case for all phasings. This theorem is what makes the analysis tractable at all.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.