Top Architect
Apr 22, 2022 · Databases
Redis Single‑Threaded Architecture, Lazy Free Mechanism, and Multi‑Threaded I/O
This article explains Redis's original single‑threaded event‑driven design, the problems it causes, how the Lazy Free mechanism and asynchronous deletion were introduced in Redis 4.0, and how Redis 6.0 adds multi‑threaded I/O while discussing its limitations and comparing it with Tair's approach.
Database ArchitectureLazy FreeMulti-threaded I/O
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