Low-Power Processors Require Effective Memory Partitioning

Abstract : The ever increasing complexity of embedded systems demands for rising memory size, and larger memories increase the power drain. In this work, we exploit banked memories with independent low-leakage retention mode in event-driven applications. The resulting energy saving for a given number of banks is close to the maximum achievable value, since the memory banks access pattern of event-driven applications presents a high temporal locality, leading to a low saving loss due to wake-up transitions. Results show an energy reduction up to 77.4% for a memory of ten banks with a partition overhead of 1%.
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Leonardo Steinfeld, Marcus Ritt, Fernando Silveira, Luigi Carro. Low-Power Processors Require Effective Memory Partitioning. 4th International Embedded Systems Symposium (IESS), Jun 2013, Paderborn, Germany. pp.73-81, ⟨10.1007/978-3-642-38853-8_7⟩. ⟨hal-01466703⟩

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