The Digital Press

MemoTTL is a Ruby gem that provides thread-safe memoization with time-to-live (TTL) expiration and least recently used (LRU) eviction, aiming to optimize method caching with automatic expiry and memory limits.

Why it matters: It offers method-level caching with expiration and size constraints, improving performance and memory management without external dependencies.

The other side: Users often rely on Rails.cache with Redis for TTL and LRU, which provides distributed caching beyond method scope.

Quick takeaway: MemoTTL is easy to integrate and thread-safe, but some suggest improvements like better error handling and alternative locking strategies.

Commenters say: They appreciate the clear design and per-method cache control but debate trade-offs versus Rails.cache and suggest enhancements for debugging and concurrency.