Open AccessLDF (less dirty first): dirtiness‐aware cache replacement policy for PCM main memory
Author(s) -
Yoo S.,
Lee E.,
Bahn H.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.1418
Subject(s) - cache , computer science , phase change memory , cpu cache , cache pollution , parallel computing , cache algorithms , engineering , phase change , engineering physics
A new last‐level cache replacement policy for systems with a phase‐change memory (PCM) main memory is presented. The proposed policy aims at reducing the write traffic to PCM by considering the fine‐grained dirtiness of cache blocks when making a replacement decision. Experimental results show that the proposed policy reduces the write traffic to the PCM by 26 and 17% on average and up to 52 and 33% compared to not recently used and re‐reference interval prediction, respectively.