Redis 6 introduced threaded I/O — multiple threads handle reading from and writing to network sockets concurrently. However, command execution still happens on the main thread serially. This improves throughput on high-connection, large-payload workloads without breaking the atomicity guarantee of command execution. Enable with io-threads 4 (match to CPU cores, not exceed them).
0-2 years experience
5-8 years experience
8+ years experience
