Measuring performance, power, and temperature from real processors

Authors:
Francisco J. Mesa-Martinez;Michael Brown;Joseph Nayfach-Battilana;Jose Renau
Affiliations:
Dept. of Computer Engineering, University of California Santa Cruz;Dept. of Computer Engineering, University of California Santa Cruz;Dept. of Computer Engineering, University of California Santa Cruz;Dept. of Computer Engineering, University of California Santa Cruz
Venue:
ecs'07 Experimental computer science on Experimental computer science
Year:
2007

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Abstract

The modeling of power and thermal behavior of processors requires challenging validation processes, which may be complex and undependable. In order to ameliorate some of the difficulties associated with the validation of power and thermal models, this paper describes an infrared measurement setup that simultaneously captures run-time power consumption, thermal characteristics, and performance activity counters from modern processors. We use infrared cameras with high spatial resolution (10×10µm) and high frame rate (125Hz) to capture thermal maps. Power measurements are obtained with a multimeter, performance counters are obtained after modifying the operating system (Linux), both at a sampling rate of 1KHz. The synchronized traces can then be used in the validation process of possible thermal, power, and processor activity models.