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arXiv · 2406.09428

FLeeC: a Fast Lock-Free Application Cache

André J. Costa·Nuno M. Preguiça·João M. Lourenço
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Abstract

When compared to blocking concurrency, non-blocking concurrency can provide higher performance in parallel shared-memory contexts, especially in high contention scenarios. This paper proposes FLeeC, an application-level cache system based on Memcached, which leverages re-designed data structures and non-blocking (or lock-free) concurrency to improve performance by allowing any number of concurrent writes and reads to its main data structures, even in high-contention scenarios. We discuss and evaluate its new algorithms, which allow a lock-free eviction policy and lock-free fast lookups. FLeeC can be used as a plug-in replacement for the original Memcached, and its new algorithms and concurrency control strategies result in considerable performance improvements (up to 6x).

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BibTeXRIS

André J. Costa, Nuno M. Preguiça, João M. Lourenço. 2024-04-17. FLeeC: a Fast Lock-Free Application Cache. https://arxiv.org/abs/2406.09428

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