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03.
04.
2012
Introducing Energy/Utility
Marcus Hähnel
TU Dresden
Verteidigung der Diplomarbeit
Energy is an important resource in all types of systems. Future
processors may not be able to power all components simultaneously
because of the chip's power envelope. Supplying enough power to the chip
is increasingly problematic. This development emphasizes the importance
of Operating Systems support to schedule energy as a resource. There are
numerous works that deal with modeling energy requirements of a system.
In my work, I introduce a new approach to such models, termed
Energy/Utility Functions, that enables weighing the utility an
application or device provides against its energy requirements. The
model is applicable to all levels of a system, from whole data centers
to individual hardware components. I formalized aspects of these
functions and provide a method to model different system layers using a
resource hierarchy. I further provide some example measurements for
device energy characteristics that are needed for our Energy/Utility
model.
In my talk, I will present my modeling approach and difficulties
encountered during the profiling of system components.
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