Redis Ditches Hash+Skiplist for Dual Specialized Trees in New Overhaul

antirez · x · 2026-07-31

Detailing the technical changes behind the Redis sorted sets update, antirez explained that the new implementation abandons the traditional hash plus skiplist architecture. Instead, it utilizes two specialized trees to achieve the significant improvements in memory and speed.

Related event: Redis Overhauls Sorted Sets to Drastically Save Memory(3 posts)→

Original post →

More from Infra

Infra channel →