karlseguin/ccache

Health v2 · maintenance only

Adoption not part of the score

1396 stars · 122 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

CCache is a Go in-memory LRU cache library designed for high-concurrency workloads. It reduces lock contention via sharded buckets, a promotion window, and a buffered channel that queues promotions to a single background worker.

Use cases

• cache frequently accessed data in a Go service
• high-concurrency in-memory caching with low lock contention
• serve slightly stale content while refreshing in the background
• cache with per-item TTLs and expiration control
• sharded LRU cache for large key sets

When to choose

• you need a thread-safe LRU cache in Go under heavy concurrent access
• you want configurable sharding, promotion, and pruning behavior
• you want to serve stale values while re-fetching fresh data

When to avoid

• you need a distributed or shared cache across processes (use Redis or similar)
• you need persistence or eviction policies beyond LRU with TTL
• your workload is single-threaded and low volume, where a simple map suffices

Facets

library · maturity stable

caching developer-tools backend performance go cross-platform lru-cache in-memory-cache high-concurrency sharded-cache ttl

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markdown · JSON · MCP: product_card(name="karlseguin/ccache")