How can I improve Redis performance without guessing?

Question

A performance change should improve the measured workload without sacrificing correctness or wasting capacity. Which measurements and bottlenecks should be considered first?

Tasadduq Burney · Accepted Answer

Measure command latency, payload size and network round trips. Use pipelining for suitable independent commands and bounded Lua scripts for atomic operations. Review data structures and hot keys before adding replicas, because replicas do not automatically distribute writes from a single primary.

How can I improve Redis performance without guessing?

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