Cachekit
High performance caching policies library in Rust
Details
- External ID
- 46611548
- Source
- HN
- Company
- —
- Product
- Cachet
- Website domain
- github.com
- Launched
- Jan. 14, 2026
- Cohort
- —
- Upvotes
- 47
- Upvotes percentile
- 0.7865612648221344
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Enrichment
- Theme
- systems tools and desktop utilities
- Vertical
- Horizontal
- Function
- Data infrastructure
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- caching policies library for rust
- Manually corrected
- False
Could you build this?
No Building high-performance, concurrent caching policies (like W-TinyLFU, ARC, or S3-FIFO) in Rust requires advanced understanding of lock-free data structures, memory layout, and systems performance engineering.
What it would actually take: The project requires implementing lock-free or striped concurrency primitives, probabilistic data structures (such as Count-Min Sketches for frequency admission), and efficient eviction algorithms in safe Rust. The core challenge is maintaining microsecond latency, zero-allocation eviction pipelines, and deterministic memory bounds under heavy multi-threaded contention. This requires deep systems programming expertise in concurrency models, cache coherence, and hardware-level performance tuning.
Discussion
8 comments analyzed.
Competitors mentioned: Foyer (Rust hybrid cache), quick-cache (fastest in-memory impl)
Concerns raised: No benchmarks vs competition despite high performance claims, Naming convention doesn't follow Rust API guidelines (LrukCache not LRUKCache), Confusing API - capacity parameter unclear in examples, Missing named parameters in Rust affects code discoverability
Feature requests: Benchmarks against Foyer and quick-cache, Sane defaults and easy memory limit configuration, Clearer documentation/examples for capacity parameter
Competitors
Other products that read as similar to this one — 1034 launches clear the similarity bar, closest 8 shown.
Attention rank: #240 of 1035 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 75 days after the earliest competitor.
- LaminarDB · hn · 2026-02-18 · 6 upvotes · similarity 0.65
- WolfStack · hn · 2026-03-08 · 32 upvotes · similarity 0.65
- casita · github · 2026-09-27 · 71 upvotes · similarity 0.64
- MCP-stama · hn · 2026-08-13 · 73 upvotes · similarity 0.64
- Octopii, a runtime for writing distributed applications in Rust · hn · 2025-12-09 · 17 upvotes · similarity 0.63
- RustDesk-Suite · github · 2026-09-22 · 81 upvotes · similarity 0.62
- once-campfire-rust · github · 2026-09-26 · 94 upvotes · similarity 0.62
- Elise-Backend · github · 2026-09-21 · 12 upvotes · similarity 0.62
Other launches for this product
Same idea, different domain
Nobody's really built a data infrastructure tool for Media & entertainment yet.