A scheduling framework for handling integrated modular avionic systems on multicore platforms
| Autor: | Johannes Freitag, Marco Caccamo, Giorgio Buttazzo, Sascha Uhrig, Renato Mancuso, Alessandra Melani |
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| Rok vydání: | 2017 |
| Předmět: |
Multi-core processor
business.industry Computer science 020208 electrical & electronic engineering 02 engineering and technology Modular design Avionics Integrated modular avionics 020202 computer hardware & architecture Microarchitecture Scheduling (computing) Embedded system Server 0202 electrical engineering electronic engineering information engineering Uniprocessor system business |
| Zdroj: | RTCSA |
| Popis: | Although multicore chips are quickly replacing uniprocessor ones, safety-critical embedded systems are still developed using single processor architecture. The reasons mainly concern predictability and certification issues. This paper proposes a scheduling framework for handling Integrated Modular Avionics (IMA) on multicore platforms providing predictability as well as flexibility in managing dynamic load conditions and unexpected temporal misbehaviors of multicore. A new computational model is proposed to allow specifying a higher degree of flexibility and minimum performance requirements. Schedulability analysis is derived for providing off-line guarantees of real-time constraints in worst-case scenarios, and an efficient reclaiming mechanism is proposed to improve the average-case performance. Simulation and experimental results are reported to validate the proposed approach. |
| Databáze: | OpenAIRE |
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