C++ order book matching engine (3.2M orders/SEC, ~320ns)
Details
- External ID
- 46103373
- Source
- HN
- Company
- —
- Product
- C++ order book matching engine (3.2M orders/SEC, ~320ns)
- Website domain
- github.com
- Launched
- Dec. 1, 2025
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.10400763358778627
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Enrichment
- Theme
- ML inference and model optimization
- Vertical
- Fintech
- Function
- Data infrastructure
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- order book matching engine
- Manually corrected
- False
Could you build this?
No A high-frequency trading matching engine processing 3.2M orders/sec at sub-microsecond latency demands specialized low-latency hardware tuning, lock-free data structures, and mechanical sympathy.
What it would actually take: The engine requires modern C++ (C++20), lock-free ring buffers, custom memory pool allocators to avoid dynamic allocation, and CPU cache-line alignment. Hard parts include minimizing branch mispredictions, using kernel-bypass networking (Solarflare OpenOnload/DPDK), and ensuring deterministic execution within ~300 nanoseconds. This requires specialized quantitative finance infrastructure engineers and low-latency systems architects.
Discussion
3 comments analyzed.
Concerns raised: Not production-ready for real exchange use, Single-threaded architecture limitations
Feature requests: Dutch auction mechanics support, Multi-threaded support
Competitors
Other products that read as similar to this one — 205 launches clear the similarity bar, closest 8 shown.
Attention rank: #186 of 206 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 29 days after the earliest competitor.
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- IResearch · hn · 2026-05-20 · 15 upvotes · similarity 0.42
Other launches for this product
- No other launches for this product.
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