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Optimal timeouts for power management under renewal or hidden Markov processes for requests

Victor Ciriza 1 Laurent Donini 1, 2 Jean-Baptiste Durand 2 Stephane Girard 2
2 MISTIS - Modelling and Inference of Complex and Structured Stochastic Systems
Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology, LJK - Laboratoire Jean Kuntzmann, Inria Grenoble - Rhône-Alpes
Abstract : This article addresses the optimal choice of the waiting period (or timeout) that a device should respect before entering sleep mode, so as to optimize a tradeoff between power consumption and user impact. The optimal timeout is inferred by appropriate statistical modeling of the times between user requests. In a test approach, these times are supposed independent, and a constant optimal timeout is inferred accordingly. In a second approach, some dependency is introduced through a hidden Markov chain, which also models specific activity states, like business hours or night periods. This model leads to a statistical framework for computing adaptive optimal timeout values. Different strategies are assessed using real datasets, on the basis of the power consumption, user impact and the frequency of wrong decisions.
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https://hal.archives-ouvertes.fr/hal-00412509
Contributor : Stephane Girard <>
Submitted on : Wednesday, June 9, 2010 - 10:06:47 AM
Last modification on : Tuesday, February 9, 2021 - 3:20:20 PM
Long-term archiving on: : Thursday, September 23, 2010 - 6:01:51 PM

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  • HAL Id : hal-00412509, version 3

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Victor Ciriza, Laurent Donini, Jean-Baptiste Durand, Stephane Girard. Optimal timeouts for power management under renewal or hidden Markov processes for requests. 2009. ⟨hal-00412509v3⟩

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