Way-predicting set-associative cache for high performance and low energy consumption
Koji Inoue, Tohru Ishihara, Kazuaki J. Murakami · 1999
Set-Associative CacheThis paper proposes a new approach using way prediction for achieving high performance and low energy consumption of set-associative caches.By accessing only a single cache way predicted, instead of accessing all the ways in a set, the energy consumption can be reduced.This paper shows that the way-predicting set-associative cache improves the ED (energy-delay) product by SO-70% compared to a conventional set-associative cache. Conventional CacheTotal energy consumed for an access to a set-associative cache ( Ecache) can be approximated by the sum of following terms [9]: