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World of Software > Computing > Redis 8.2 Preparing More Performance Optimizations, SVS-VAMANA
Computing

Redis 8.2 Preparing More Performance Optimizations, SVS-VAMANA

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Last updated: 2025/07/04 at 8:54 AM
News Room Published 4 July 2025
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The first release candidate of Redis 8.2 is now available for testing of this popular in-memory key-value database. Redis 8.2 is building off the recent Redis 8.0 release that ended up going tri-licensing with the AGPLv3 stemming from developer/community feedback.

Redis 8.2-RC1 is bringing new commands for streams, the query engine has a new SVS-VAMANA vector index type for vector compression optimized for modern Intel CPUs, and a variety of new performance optimizations and memory usage improvements. The SVS-VAMANA is part of the Redis work on supporting Scalable Vector Search (SVS) library integration.

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The new performance/memory optimizations with Redis 8.2-RC1 include:

– Optimize BITCOUNT by introducing prefetching
– Optimize SCAN by performing expiration checks only on DBs with volatile keys
– Optimize expiry check in scanCallback
– Optimize LREM, LPOS, LINSERT, ZRANK, and more by caching string2ll results in quicklistCompare
– Optimize COPY, RENAME, and RESTORE when TTL is used
– Reduce the overhead associated with tracking malloc’s usable memory
– Optimize the client’s cron to avoid blocking the main thread
– memory footprint improvement by inlining numbers (MOD-9511)

Downloads and more details on today’s Redis 8.2-RC1 release via GitHub.

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