Abstract

As the transistor feature sizes and threshold voltages reduce, leakage energy consumption has become an inevitable issue for highperformance microprocessor designs. Since on-chip caches are major contributors of the leakage, a number of researchers have proposed efficient leakage reduction techniques. However, it is still not clear that 1) what kind of algorithm can be considered and 2) how much they have impact on energy and performance. To answer these questions, we explore runtime cache management algorithm, and evaluate the energy-performance efficiency for several alternatives.

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