SEProf: A high-level software energy profiling tool for an embedded processor enabling power management functions

Shiao-Li Tsao*, Jian Jhen Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Energy efficiency has become one of the most important design issues for embedded systems. To examine the power consumption of an embedded system, an energy profiling tool is highly demanded. Although a number of energy profiling tools have been proposed, they are not directly applicable to the embedded processors with power management functions that are widely utilized in battery-operated embedded systems to reduce power consumption. Hence, this study presents a high-level energy profiling tool, called SEProf, that estimates the energy consumption of an embedded system running multithread software and a multitasking operating system (OS) that supports power management functions. This study implements the proposed SEProf in Linux 2.6.19 and evaluates its performance on an ARM11 MPCore processor. Experimental results demonstrate that the proposed tool can provide accurate energy profiling results with a low profiling overhead.

Original languageEnglish
Pages (from-to)1757-1769
Number of pages13
JournalJournal of Systems and Software
Volume85
Issue number8
DOIs
StatePublished - 1 Aug 2012

Keywords

  • Embedded processor
  • Energy profiling
  • Power consumption
  • Power management

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