Memory Database

Rare Earth Juejin Tech Community

Sep 7, 2024 · Databases

Understanding Redis Data Types and Their Underlying Implementations

This article explains the internal structures of Redis data types—including strings, lists, sets, hashes, and sorted sets—detailing their memory representations, evolution across versions, time‑complexity characteristics, and the code implementations that enable efficient in‑memory operations.

Memory DatabaseRedisdata structures

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Understanding Redis Data Types and Their Underlying Implementations

DeWu Technology

Apr 14, 2023 · Backend Development

Async-fork: Mitigating Query Latency Spikes Incurred by the Fork-based Snapshot Mechanism from the OS Level

Async‑fork shifts the costly page‑table copying from Redis’s parent process to its child, allowing the parent to resume handling queries instantly and cutting snapshot‑induced latency spikes by over 98%, thereby dramatically improving tail latency during AOF rewrites, RDB backups, and master‑slave synchronizations.

Async-forkMemory DatabaseRedis

0 likes · 21 min read

Async-fork: Mitigating Query Latency Spikes Incurred by the Fork-based Snapshot Mechanism from the OS Level