Scheduling of Hard Real-Time Multi-Thread Periodic Tasks

Details Scheduling of Hard Real-Time Multi-Thread Periodic Tasks Scheduling of Hard Real-Time Multi-Thread Periodic Tasks

2011-05-25

arxiv.org/abs/1105.5080v1

Computer Science

Operating Systems

Scientific paper

In this paper we study the scheduling of parallel and real-time recurrent tasks. Firstly, we propose a new parallel task model which allows recurrent tasks to be composed of several threads, each thread requires a single processor for execution and can be scheduled simultaneously. Secondly, we define several kinds of real-time schedulers that can be applied to our parallel task model. We distinguish between two scheduling classes: hierarchical schedulers and global thread schedulers. We present and prove correct an exact schedulability test for each class. Lastly, we also evaluate the performance of our scheduling paradigm in comparison with Gang scheduling by means of simulations.

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