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Nowadays, systems often integrate a variety of applications whose service requirements are heterogeneous. Consequently, systems must be able to concurrently serve applications which rely on different constraints. This raises the problem of the dynamic distribution of the system resources (CPU, memory, network, etc.). Therefore, an integrated Quality of Service (QoS) management is needed so as to efficiently assign resources according to the various application demands. Within this paper, we focus on a dynamic approach of QoS management for memory resource allocation based on the Skip-Over model. We detail our solution and we show how it improves the service of task memory requests while providing them guarantees. Quantitative results using the TLSF allocator have been performed in order to evaluate the memory failure probability with and without memory QoS manager.
Date of Conference: 25-27 Aug. 2008