Research Article Early wakeup: improving the drowsy cache performance

consumption. The drowsy cache technique is known as one of the most popular techniques for reducing the leakage power consumption in the data cache. However, the drowsy cache is reported to degrade the processor performance signi cantly. In this paper, to maintain the performance of the processor with the drowsy cache technique, we propose an early wakeup technique, which predicts the next cache line to be requested by utilizing the way-prediction information. The proposed technique eciently reduces the number of accesses to the cache lines in drowsy mode. Our simulation results show that the proposed technique reduces the extra delay due to the drowsy cache scheme by 29.6%, on average