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Virtual processor frequency emulation

Mayap Kamga, Christine and Hagimont, Daniel Virtual processor frequency emulation. (2013) In: 19th International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2013) held as part of WORLDCOMP'13, 22 July 2013 - 25 July 2013 (Las Vegas, United States).

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Official URL: http://worldcomp-proceedings.com/proc/p2013/PDP.html

Abstract

Nowadays, virtualization is present in almost all computing infrastructures. Thanks to VM migration and server consolidation, virtualization helps in reducing power consumption in distributed environments. On another side, Dynamic Voltage and Frequency Scaling (DVFS) allows servers to dynamically modify the processor frequency (according to the CPU load) in order to achieve less energy consumption. We observe that while DVFS is widely used, it still generates a waste of energy. By default and thanks to the ondemand governor, it scales up or down the processor frequency according to the current load and the different predefined threshold (up and down). However, DVFS frequency scaling policies are based on advertised processor frequencies, i.e. the set of frequencies constitutes a discrete range of frequencies. The frequency required for a given load will be set to a frequency higher than necessary; which leads to an energy waste. In this paper, we propose a way to emulate a precise CPU frequency thanks to the DVFS management in virtualized environments. We implemented and evaluated our prototype in the Xen hypervisor.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to ACM editor. The definitive version is available at http://dl.acm.org This papers appears in Parallel and Distributed Processing Techniques and Applications : The 2013 WorldComp International Conference Proceedings ; ISBN : 9781601322586 . The original PDF is available at : http://dl.acm.org/citation.cfm?id=2685931
HAL Id:hal-01239726
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
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Deposited By: IRIT IRIT
Deposited On:09 Nov 2015 13:11

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