Comparison of State-Preserving vs. Non-State-Preserving Leakage Control in Caches
Dharmesh Parikh, Yan Zhang, Karthik Sankaranarayanan, Kevin Skadron, Mircea R. Stan · 2003
This paper compares the effectiveness of statepreserving and non-state-preserving techniques for leakage control in caches by comparing drowsy cache and gatedV for data caches using 70nm technology parameters. To perform the comparison, we use "HotLeakage", a new architectural model for subthreshold and gate leakage that explicitly models the effects of temperature, voltage, and parameter variations, and has the ability to recalculate leakage currents dynamically as temperature and voltage change at runtime due to operating conditions, DVS techniques, etc.