Affiliation:
1. DEIS - Universitá di Bologna, Bologna, ITALY
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.
Publisher
Association for Computing Machinery (ACM)
Reference20 articles.
1. Advanced RISC Machines Ltd. Advanced RISC Machines Architectural Reference Manual Prentice Hall New York July 1996]] Advanced RISC Machines Ltd. Advanced RISC Machines Architectural Reference Manual Prentice Hall New York July 1996]]
2. System-level power optimization
3. Monitoring system activity for OS-directed dynamic power management
4. Power analysis of embedded operating systems
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