Round-Robin Problems

• If any device needs a response in less time than the worst duration of the loop the system won't function.

  • if A and B take 5ms each and Z needs a response time of less than 7ms its not possible.
  • This can be mitigate somewhat by doing (A,Z,B,Z) in a loop instead of (A,B,Z).
    • Scalability of this solution is poor.
  • Even if absolute deadlines do not exist, overall response time may become unacceptably poor.