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- W637797136 abstract "In this thesis we present a comparative analysis of shared cache management techniques for chip multiprocessors. When sharing an unmanaged cache between multiple cores, destructive interference can reduce the performance of the system as the cores compete over limited cache space. This situation is made worse by streamlike applications that exhibit low locality of reference but has high cache demands. Several schemes for dynamically adjusting cache space available to each core has been suggested, and in this work we evaluate 3 such schemes as well as static partitioning and conventional LRU. We deploy a well defined simulation methodology to analyze the performance of the cache management techniques. The gem5 simulator is used to simulate the ARM ISA, and the SPEC2006 benchmark suite is used to create multi-programmed workloads. The simulator has been extended to support cache management schemes and provide detailed simulation statistics. We implement UCP, PIPP, PriSM and static partitioning, and simulate dual core, quad core and 8 core workloads. Our results show that destructive interference is a real issue in many workloads. Static partitioning can work well in scenarios where applications have similar cache demands, by creating private areas in the cache for each core. UCP improves on static partitioning by dynamically adjusting the size of each partition during runtime. PIPP performs decently by trying to maintain a specific cache occupation for each core without strictly enforcing a partition, but does not quite achieve the desired occupation and thus its performance suffers. PriSM fails to perform well, as its effort to determine a target cache allocation and maintain it does not work successfully for our workloads." @default.
- W637797136 created "2016-06-24" @default.
- W637797136 creator A5053803526 @default.
- W637797136 date "2013-01-01" @default.
- W637797136 modified "2023-10-18" @default.
- W637797136 title "A Comparative Analysis of Shared Cache Management Techniques for Chip Multiprocessors" @default.
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