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There are two main types of task scheduling algorithm in Real-Time Operating Systems (RTOS).

1. Rate Monotonic Scheduling (RMS)

2. Earliest-Deadline-First (EDF)


Rate Monotonic Scheduling (RMS) :

  • Rate Monotonic Scheduling is the static scheduling algorithm.
  • Rate Monotonic Scheduling algorithm is used in Real Time Operating Systems (RTOS).
  • Rate Monotonic Scheduling is used for scheduling processes on a single processor.
  • Rate Monotonic Scheduling is a priority based scheduling.
  • In Rate Monotonic Scheduling the process with the shortest period has the highest priority.
  • Rate Monotonic Scheduling is useful in embedded systems.
  • The Rate Monotonic Scheduling assigns fixed priority to the processes based on the period.
  • The Rate Monotonic Scheduling algorithm put the process with a short period to highest priority and then next shortest period process and so on.
  • Rate Monotonic Scheduing do not support non-periodic processees.


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