Complete System Power Estimation using Processor Performance Events

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Provided by: University of Texas at Arlington
Topic: Hardware
Format: PDF
In this paper, the authors propose the use of microprocessor performance counters for online measurement of complete system power consumption. The approach takes advantage of the \"Trickle-down\" effect of performance events in microprocessors. While it has been known that CPU power consumption is correlated to processor performance, the use of well-known performance-related events within a microprocessor such as cache misses and DMA transactions to estimate power consumption in memory and disk and other subsystems outside of the microprocessor is new.
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