Macromodeling and characterization of filesystem energy consumption for diskless embedded systems

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Title: Macromodeling and characterization of filesystem energy consumption for diskless embedded systems
Author: Choudhuri, Siddharth
Abstract: The use and application of embedded systems in everyday life has proliferated in the past few years . These systems are constrained in terms of power consumption , available memory and processing requirements . Typical embedded systems like handheld devices , cell phones , single board computer based systems are diskless and use flash for secondary storage . The choice of filesystem for these diskless systems can greatly impact the performance and the energy consumption of the system as well as lifetime of flash . In this thesis work , the energy consumption of flash based filesystems has been characterized . Both the processor and flash energy consumption are characterized as a function of filesystem specific operations . The work is aimed at helping a system designer compare and contrast different filesystems based on energy consumption as a metric . The macromodel can be used to characterize and estimate the energy consumption of applications due to filesystem running on flash . The study is done on a StrongARM based processor running Linux . Two of the popular filesystems JFFS2 and ext3 are profiled .
URI: http : / /hdl .handle .net /1969 .1 /295
Date: 2004-09-30

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Macromodeling and characterization of filesystem energy consumption for diskless embedded systems. Available electronically from http : / /hdl .handle .net /1969 .1 /295 .

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