How does Redis handle durability vs performance trade-offs?

Redis balances durability and performance using configurable persistence mechanisms like RDB and AOF.

RDB snapshots provide fast performance but risk data loss between snapshots. AOF logs every write operation, improving durability but adding overhead. Redis allows tuning fsync policies (always, every second, or never) to balance performance and reliability. Combining RDB and AOF offers a hybrid approach for production systems.