| dc.description |
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 . |
|