Abstract
Abstract For the schedulability analysis of hard real-time systems it is important to use task and resource models that appropriately capture the characteristics of the underlying system. In this paper a general task model, the Variable Task Model , most appropriate for tasks with bursty release characteristics, is formalized. Also, a new processor model, the Variable Processor Model , is suggested which allows to account for dead time and variable processing speed. It is shown how worst case bounds on task response time can be calculated. A general schedulability test is derived.
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