Shared Cache management scheme with location information and eviction probability in multi-core system
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    Abstract:

    LLC (last level Cache) plays an important role in multi-core systems. A shared LLC management scheme with fine granularity, low latency and simple hardware complexity was proposed. The performance goal was translated into eviction probabilities of each core. Then, a victim core, which was near the current core and had higher eviction probability was chosen to provide the victim block for replacement. In this way, LLC was dynamically partitioned among all cores at finer granularity of Cache blocks. This proposal is more flexible than traditional way-partitioning scheme. In addition, the combination of location information and eviction probability improves the locality between Cache resources and the corresponding cores, which can reduce the Cache access latency. The proposed scheme requires only little additional hardware changes to traditional Cache structure. Results on M5 simulator suggest that the performance can improve from 6.8% to 22.7% when comparing with the related works. 

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History
  • Received:November 19,2015
  • Revised:
  • Adopted:
  • Online: November 08,2016
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