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Issue No. 02 - Mar.-Apr. (2014 vol. 18)
ISSN: 1089-7801
pp: 41-49
Yuehai Xu , Wayne State University
Song Jiang , Wayne State University
Mike Paleczny , Facebook
Memcached is one of the world's largest key-value deployments. This article analyzes the Memcached workload at Facebook, looking at server-side performance, request composition, caching efficacy, and key locality. The observations presented here lead to several design insights and new research directions for key-value caches, such as the relative inadequacy of the least recently used (LRU) replacement policy.
Facebook, Social network services, Online services, Cache memory, Workload management

Y. Xu, E. Frachtenberg, S. Jiang and M. Paleczny, "Characterizing Facebook's Memcached Workload," in IEEE Internet Computing, vol. 18, no. 2, pp. 41-49, 2014.
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