Yiannakis Sazeides Rakesh Kumar Dean M. Tullsen Theofanis Constantinou The Danger of Interval-Based Power Efficiency Metrics: When Worst Is Best. 1 2005 4 Computer Architecture Letters 1 http://doi.ieeecomputersociety.org/10.1109/L-CA.2005.2 db/journals/cal/cal4.html#SazeidesKTC05