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Task scheduling of real-time systems on multi-core embedded processor

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2 Author(s)
Jiahai Liu ; City Coll., Zhejiang Univ., Hangzhou, China ; Maolin Yang

For multi-core embedded systems, the traditional load balancing leads to lavish power consumption by fully utilizing all cores. This paper proposes a novel load unbalancing strategy based on periodic and aperiodic tasks in hard real-time multi-core embedded systems to reduce power consumption. The scheduling architecture uses a two-level scheduling scheme. At the top level, the periodic tasks are bounded to embedded cores by RBound-FF algorithm and the aperiodic tasks are dispatched to the rest cores as evenly as possible. At the bottom level, a rate-monotonic OS scheduler is adopted to schedule the periodic tasks and a deadline-monotonic OS scheduler is used to schedule the aperiodic tasks.

Published in:

Intelligent Systems and Knowledge Engineering (ISKE), 2010 International Conference on

Date of Conference:

15-16 Nov. 2010

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