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Effective And Efficient Preemption Placement For Cache Overhead Minimization In Hard Real-Time Systems, John Cavicchio
Effective And Efficient Preemption Placement For Cache Overhead Minimization In Hard Real-Time Systems, John Cavicchio
Wayne State University Dissertations
Schedulability analysis for real-time systems has been the subject of prominent research over the past several decades. One of the key foundations of schedulability analysis is an accurate worst case execution time (WCET) for each task. In preemption based real-time systems, the CRPD can represent a significant component (up to 44% as documented in research literature) of variability to overall task WCET. Several methods have been employed to calculate CRPD with significant levels of pessimism that may result in a task set erroneously declared as non-schedulable. Furthermore, they do not take into account that CRPD cost is inherently a function …