%0 Journal Article %1 acquaviva01energy %A Acquaviva, A. %A Benini, L. %A Riccó, B. %C New York, NY, USA %D 2001 %I ACM %J SIGARCH Comput. Archit. News %K Energy-characterization OS Real-time embedded %N 5 %P 13--18 %R http://doi.acm.org/10.1145/563647.563652 %T Energy characterization of embedded real-time operating systems %U http://portal.acm.org/citation.cfm?id=563647.563652 %V 29 %X In this paper we propose a methodology to analyze the energy overhead due to the presence of an embedded operating system in a wearable device. Our objective is to determine the key parameters affecting the energy consumption of the RTOS allowing the development of more efficient OS-based power management policies. To achieve this target, we propose a characterization strategy that stimulates the RTOS both at the kernel and at the I/O driver level by analyzing various OS-related parameters. Our analisys focus in particular on the relationship between energy consumption and processor frequency characterizing the different functionalities of an RTOS, suggesting a way to develop effective OS-aware energy optimization policies based on variable voltage and frequency. Experimental results are presented for eCos, an open-source embedded OS ported and installed on a prototype of wearable device, the HP SmartBadgeIII.

@article{acquaviva01energy, abstract = {In this paper we propose a methodology to analyze the energy overhead due to the presence of an embedded operating system in a wearable device. Our objective is to determine the key parameters affecting the energy consumption of the RTOS allowing the development of more efficient OS-based power management policies. To achieve this target, we propose a characterization strategy that stimulates the RTOS both at the kernel and at the I/O driver level by analyzing various OS-related parameters. Our analisys focus in particular on the relationship between energy consumption and processor frequency characterizing the different functionalities of an RTOS, suggesting a way to develop effective OS-aware energy optimization policies based on variable voltage and frequency. Experimental results are presented for eCos, an open-source embedded OS ported and installed on a prototype of wearable device, the HP SmartBadgeIII.}, added-at = {2009-01-19T18:12:15.000+0100}, address = {New York, NY, USA}, author = {Acquaviva, A. and Benini, L. and Ricc\'{o}, B.}, biburl = {https://www.bibsonomy.org/bibtex/23eef2ae873f5a5db1341d20abfec9c9c/derkling}, doi = {http://doi.acm.org/10.1145/563647.563652}, interhash = {4b01b125ec18d4efa94ae30aed52cb99}, intrahash = {3eef2ae873f5a5db1341d20abfec9c9c}, issn = {0163-5964}, journal = {SIGARCH Comput. Archit. News}, keywords = {Energy-characterization OS Real-time embedded}, number = 5, pages = {13--18}, publisher = {ACM}, timestamp = {2009-01-19T18:12:15.000+0100}, title = {Energy characterization of embedded real-time operating systems}, url = {http://portal.acm.org/citation.cfm?id=563647.563652}, volume = 29, year = 2001 }