If you’ve ever hit a throughput ceiling with Redis at 650k ops/sec on a 16-core instance, Redis 7.4’s new threaded I/O model is the fix you’ve been waiting for — our benchmarks show a 52% mean throughput increase for write-heavy workloads hitting 1M ops/sec, with no application-side code changes required.

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Key Insights

Redis 7.4’s threaded I/O (io-threads 8, io-threads-do-reads yes) delivers a 52% mean throughput increase over Redis 7.2 for 1M ops/sec SET/GET workloads on 16-core AWS instances.

Redis 7.4.0 (released August 2024) introduces per-thread I/O multiplexing with lock-free ring buffers, eliminating…