One question that recently made me rethink cache eviction was: If Redis uses LRU, why doesn't it...
One question that recently made me rethink cache eviction was:
If Redis uses LRU, why doesn't it maintain a heap (or a perfectly sorted list) of keys?
The answer comes down to optimizing the common case.
The Problem
Imagine a Redis instance with 10 million keys.
Redis holds everything in memory, which raises an obvious question: what stops it from filling up and...
Many developers think Redis is just a cache. In production systems, Redis often becomes a critical...
When I started learning Redis, I had one big question: "If thousands of people are using the same app...
Redis gets reached for reflexively, "just add Redis," as if it were a single fix for slowness. It's...
The reason Redis solves so many problems is that it isn't one thing, it's a collection of data...
A real-world Rust performance story about heap allocation, small arrays, CPU cache, and why insertion sort sometimes beats a…
