EMSIM: an energy simulation framework for an embedded operating system

Abstract

Abstmct-Modern embedded systems are typically built A. Related Work using an operating system (OS) (frequently an embedded OS).As energy consumption has become an important issue in the design of embedded systems (e.g., mobile computing and wireless communication devices), various techniques have been developed for the design of energy-efficient embedded software.In OS-driven embedded systems, the OS has a significant impact on the system's energy consumption directly (energy consumption associated with the execution of the OS functions and services), as well as indirectly (interaction of the OS with the application software).As a fist step towards designing energy-efficient OS-based embedded systems, it is important to develop methodologies to analyze the energy consumption of the embedded OS. We present, in this work, an energy simulation framework that can be used to analyze the energy consumption characteristics of an embedded system featuring the embedded Linux OS running on the StrongARM processor.

Estimation of Energy Consumption for Mobile Software using UML State Machine Diagram

“…Kim's research [18] proposed an energy library to support energy consumption analysis using software design model. To perform the profiling of energy consumption for those VIs, we used the EMSIM 2.0 simulator [20], which is a tool for estimating the energy consumption using source code, developed by T. K. Tan.…”

“…To obtain the energy consumption values of the instructions and system functions, we performed energy profiling with 200 times simulations per an instruction. The profiling was carried out with the instruction-based energy estimation tools, EMSIM 2.0 [20] and XEEMU [21]. These tools give the energy values in joule for input codes based on their implicit hardware architecture.…”

Energy-optimizing source code transformations for operating system-driven embedded software

“…Dick et al [8] first developed an energy profiler for applications executing on an embedded system based on the Fujitsu SPARCLite processor running § C/OS II. Tan et al [9] developed an energy simulator, called EMSIM, for an embedded system featuring a StrongARM processor that uses embedded Linux as its OS. Vahdat et al [10] re-examined the design and implementation of OSs by taking energy consumption as the primary metric instead of performance.…”

“…Table I validates the above hypothesis by showing energy consumption results for the original and merged configurations. The energy simulator EMSIM [9] was used to generate the results. The energy data also show that Transform 1 is better than Transform 2.…”

Fast and Accurate Embedded Systems Energy Characterization Using Non-intrusive Measurements

“…Only few works focus on modeling a complete platform. Among them, EMSIM [12] is a simulator based on Simunic et al [10] model for the StrongARM SA110 energy characterization. This simulator poorly characterizes the peripherals.…”