BibTeX
@TECHREPORT{Tindell_addingtime-offsets,
author = {Ken Tindell},
title = {Adding Time-Offsets to Schedulability Analysis},
institution = {},
year = {}
}
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Abstract
This paper discusses the addition of so-called time offsets to task sets dispatched according to fixed priorities. The motivation for this work is two-fold: firstly, direct expression of time offsets is a useful structuring approach for designing complex hard real-time systems. Secondly, analysis directly addressing time offsets can be very much less pessimistic than extant analysis. In this report we extend our current fixed priority schedulability analysis, and then present two major worked examples, illustrating the approach. 1. INTRODUCTION Previous work has addressed the problem of determining the worst-case timing behaviour of tasks dispatched according to fixed priority scheduling [11, 10]. Much of this work has been aimed at determining the worst-case case response time of a given task; of course, the worst-case response time is, by definition, the response time of the task in the worst-case scheduling scenario. So far, in all these previous pieces of work, tasks have been ass...
