Measuring Performance, Power, and Temperature from Real Processors

Workshop on Experimental Computer Science

Francisco J. Mesa-Martinez Michael Brown Joseph Nayfach-Battilana Jose Renau

Others  :  http://www.usenix.org/events/expcs07/papers/16-mesamartinez.pdf
PID  :  6244

来源: CEUR

【 摘 要 】

The modeling of power and thermal behavior of processors re- quires challenging validation processes, which may be complex and undependable. In order to ameliorate some of the difficul- ties associated with the validation of power and thermal models, this paper describes an infrared measurement setup that simul- taneously captures run-time power consumption, thermal char- acteristics, and performance activity counters from modern pro- cessors. We use infrared cameras with high spatial resolution (10x10µm) and high frame rate (125Hz) to capture thermal maps. Power measurements are obtained with a multimeter, while 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 pro-