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A Robust Mechanism for Adaptive Scheduling of Multimedia Applications TOMMASO CUCINOTTA Scuola Superiore Sant Anna LUCA ABENI and LUIGI PALOPOLI, University of Trento GIUSEPPE LIPARI, Scuola Superiore Sant Anna We propose an adaptive scheduling technique to schedule highly dynamic multimedia tasks on a CPU. We use a combination of two techniques: the rst one is a feedback mechanism to track the resource requirements of the tasks based on local observations. The second one is a mechanism that operates with a global visibility, reclaiming unused bandwidth. The combination proves very effective: resource reclaiming increases the robustness of the feedback, while the identi cation of the correct bandwidth made by the feedback increases the effectiveness of the reclamation. We offer both theoretical results and an extensive experimental validation of the approach. Categories and Subject Descriptors: C.3 [Computer Systems Organization]: Special-Purpose and Application-Based Systems Real-time and embedded systems; D.4.7 [Operating System]: Organization and Design Real-time systems and embedded systems; D.4.8 [Operating Systems]: Performance Stochastic analysis; J.7 [Computer Applications]: Computers in Other Systems Real-time General Terms: Design, Performance, Experimentation ACM Reference Format: Cucinotta, T., Abeni, L., Palopoli, L., and Lipari, G. 2011. A robust mechanism for adaptive
ACM Transactions on Embedded Computing Systems (TECS) – Association for Computing Machinery
Published: Nov 1, 2011
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