.. _sched_parts:


Parts of the Scheduler
=======================

The main functional components of the scheduler are:

#.  .. describe:: Enqueuer

        It adds a pointer or reference to the process' :ref:`pcb`
        as per the desired data structure of the ready queue, which is usually
        a collection of linked lists.

#.  .. describe:: Dispatcher

        The part that implements the scheduling algorithm to pick the next
        process to run.

#.  .. describe:: Context Switcher

        Loads the selected process onto the CPU as the running process.


.. figure:: scheduler_parts.png
   :align: center