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Exercise. Assigning priorities to tasks Description: Consider the application main of the multi-media consumer terminal (see, e.g. slide 17 of the examples), and the following two situations. (a) All tasks only block on their input or output, but never on any other hardware resource.
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Reinder J. Bril, r.j.bril@tue.nl TU/e Informatica, System Architecture and Networking Exercise • Assigning priorities to tasks • Description:Consider the application main of the multi-media consumer terminal (see, e.g. slide 17 of the examples), and the following two situations. (a)All tasks only block on their input or output, but never on any other hardware resource. (b)As a refinement of (a), the video decoder may block on a VLD (variable length decoder). It typically blocks multiple times on the VLD during the processing of a single frame. Assume RMS of the tasks of main. • Questions: • Propose an assignment of (relative) priorities to the tasks of main for situation (a), and motivate it. • Similar for situation (b).