Energy optimization in cache memory and reducing cache leakage power

ENERGY OPTIMIZATION IN CACHE MEMORY AND REDUCINGCACHE LEAKAGE POWERABSTRACTIn general, performance-oriented techniques influence energy consumption andenergy-oriented techniques increase program execution cycles. The overall energyand performance behavior of caches in embedded systems when multiple techniquesco-exist remains an open research problem. In this study, it?s focused on thesesubjects and demonstrated how performance and energy optimizations affect eachother. Then we proposed three optimization schemes that turn off cache lines in aprefetching-sensitive manner. Specifically, these schemes treat prefetched cachelines differently from the lines brought to the cache in a normal way. It has beenindicated that proposed methods decrease leakage energy considerably in performedtests on five randomly-selected codes from the SPEC2000 simulator. When theresults of the performed tests evaluated, it has been observed that the performanceoverheads introduced by these schemes are negligible.Keywords: Caches, Prefetching, Leakage Energyvi