Christopher J. Kenna

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Mixed-criticality scheduling algorithms, which attempt to reclaim system capacity lost to worst-case execution time pessimism , seem to hold great promise for multicore real-time systems, where such loss is particularly severe. However, the unique nature of these algorithms gives rise to a number of major challenges for the would-be implementer. This paper(More)
—The last few years have witnessed a growing consensus around the notion that many papers discussing wireless network simulation are plagued by issues that weaken their scientific value. A number of articles have shown evidence of this crisis of credibility and identified many of its causes. In this paper, we show that the methodology flaws in wireless(More)
The evolution of multicore platforms has led to much recent work on multiprocessor scheduling techniques for soft real-time workloads. However, end users routinely run such work-loads atop general-purpose operating systems with seemingly good results, albeit typically on over-provisioned systems. This raises the question: when, if ever, is the use of an(More)
In safety-critical cyber-physical systems, the usage of mul-ticore platforms has been hampered by problems due to interactions across cores through shared hardware. The inability to precisely characterize such interactions can lead to worst-case execution time pessimism that is so great, the extra processing capacity of additional cores is entirely negated.(More)
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