ThinkerQAQ

5.Memory Management

Redis / Cache · 4 notes

  1. 5.1 Redis Key Expirationhistorical

    TTL semantics and Redis's combined passive and active expiration strategy, without depending on historical sampling constants.

  2. 5.2 Redis Memory Managementhistorical

    How Redis memory is consumed, why RSS differs from logical dataset memory, fragmentation and allocator effects, maxmemory, expiry, eviction, and practical observability.

  3. 5.3 Redis Eviction Policieshistorical

    Redis maxmemory eviction policies including noeviction, LRU, LFU, random, TTL-focused policies, and how to choose among allkeys and volatile variants.

  4. 5.4 Redis Memory Optimizationhistorical

    Modern Redis memory optimization through schema design, bounded cardinality, compact encodings, payload reduction, TTL/eviction, allocator observation, and instance sizing.