Relative Performance of a Multi-level Cache with Last-Level Cache Replacement: An Analytical Review
Published: 2013
Author(s) Name: Debabala Swain, Bijay Paikaray |
Author(s) Affiliation: India
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Abstract
Current day processors employ multi-level cache
hierarchy with one or two levels of private caches
and a shared last-level cache (LLC). Replacement
policy at the Last Level Cache is vital due to reduction
of off-chip memory latency as well as conflict for
memory bandwidth. Cache replacement techniques
for inclusive LLCs may not be efficient for multilevel
cache as it can be shared by enormous applications
with varying access behavior, running simultaneously.
One application may dominate another by flooding
of cache requests and evicting the useful data of the
other application. This paper analyzes some of the
existing replacement techniques on the LLC with their
performance assessment.
Keywords: Cache Performance, Multi-Level Cache, Last Level Cache (LLC)
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