Towards Bandwidth Optimal Temporal Partitioning

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Executive Summary

In real-time systems the available processing time is partitioned in order to enforce separation of concerns of concurrent application components. This is a necessary step to prevent possible side effects of an erroneous application component on other components in the system. One of the main objectives in temporal partitioning is the selection of appropriate partition parameters (e.g. replenishment period and budget) that minimise the resulting resource bandwidth reservation. Currently there are only heuristic limits on the search space of bandwidth optimal Virtual Resource (VR) parameters. The authors provide a lower and upper bound on the period of a periodic VR in order to limit the search space for bandwidth optimal parameters.

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