Effects of real-time scheduling on cache performance and worst case execution times

We observe the cache misses introduced by scheduling and preemptions and their effects on the worst case execution time (CRPD) by simulation in a cycle accurate simulator. Furthermore we report a survey of current state of the art approaches to bound the effects of the CRPD. In addition we propose a new technique which can, not only bound, but actually reduce the number of cache misses and thus the WCET of a task, by limiting the preemptions a task can suffer while still maintaining the schedulability of the system