Title
Reusability-aware cache memory sharing for chip multiprocessors with private L2 caches
Abstract
In this paper, we propose a novel on-chip L2 cache organization for chip multiprocessors (CMPs) with private L2 caches. The proposed approach, called reusability-aware cache sharing (RACS), combines the advantages of both a private L2 cache and a shared L2 cache. Since a private L2 cache organization has a short access latency, the RACS scheme employs a private L2 cache organization. However, when a cache block in a private L2 cache is selected for eviction, RACS first evaluates its reusability. If the block is likely to be reused in the near future, it may be saved to a peer L2 cache which has space available. In this way, the RACS scheme effectively simulates the larger capacity of a shared L2 cache. Simulation results show that RACS reduced the number of off-chip memory accesses by 24% compared to a pure private L2 cache organization on average for the SPLASH 2 multi-threaded benchmarks, and by 16% for multi-programmed benchmarks.
Year
DOI
Venue
2009
10.1016/j.sysarc.2009.09.003
Journal of Systems Architecture - Embedded Systems Design
Keywords
Field
DocType
reusability-aware cache sharing,chip multiprocessors,cache block,cmps,private l2 cache,multi-threaded benchmarks,cache management,multi-programmed benchmarks,reusability,reusability-aware cache memory sharing,novel on-chip l2 cache,larger capacity,racs scheme,l2 cache,l2 cache organization,chip,cache memory
Cache invalidation,Cache pollution,Computer science,Cache,Parallel computing,Real-time computing,Cache algorithms,Page cache,Cache coloring,Bus sniffing,Smart Cache
Journal
Volume
Issue
ISSN
55
10-12
Journal of Systems Architecture
Citations 
PageRank 
References 
1
0.35
10
Authors
3
Name
Order
Citations
PageRank
Hyunhee Kim1345.51
Sungjun Youn210.69
Jihong Kim31336104.37