PowerScope: a tool for profiling the energy usage of mobile applications

1 January 1999

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 2-10
https://doi.org/10.1109/mcsa.1999.749272

Abstract

We describe the design and implementation of PowerScope, a tool for profiling energy usage by applications. PowerScope maps energy consumption to program structure, in much the same way that CPU profilers map processor cycles to specific processes and procedures. Our approach combines hardware instrumentation to measure current level with kernel software support to perform statistical sampling of system activity. Postprocessing software maps the sample data to program structure and produces a profile of energy usage by process and procedure. Using PowerScope, we have been able to reduce the energy consumption of an adaptive video playing application by 46%.

Keywords

APPLICATION SOFTWARE
ENERGY CONSUMPTION
HARDWARE
INSTRUMENTS
CURRENT MEASUREMENT
SOFTWARE MEASUREMENT
KERNEL
SOFTWARE PERFORMANCE
PERFORMANCE EVALUATION
SAMPLING METHODS

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