C++ order book matching engine (3.2M orders/SEC, ~320ns)
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HN · launched Dec 1, 2025 · 5 upvotes (top 90%) · 0 views
Niche: specialized algorithms and computing libraries · 230 launches, 4 in the last 7 days ▼ -73% · Explore this niche →
Category and tags
- Fintech
- Data infrastructure
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 230 launches in specialized algorithms and computing libraries →
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 : 587 launches clear the similarity bar, closest 8 shown.
Attention rank: #536 of 588 (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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- ordered-floating-point-addition · github · 2026-11-07 · 12 upvotes · similarity 0.52
- Gpubook · hn · 2026-05-19 · 7 upvotes · similarity 0.50
- Aphelo · hn · 2026-04-01 · 5 upvotes · similarity 0.48
- go-conc-distilled · github · 2026-09-26 · 72 upvotes · similarity 0.47
- order-flow-screener · github · 2026-10-08 · 17 upvotes · similarity 0.46
- ExprTk High-Performance C++ Math Expression Parser Evaluation Engine · hn · 2026-01-16 · 8 upvotes · similarity 0.46
- A benchmark comparison of C++ vs. Node.js performance · hn · 2026-09-25 · 5 upvotes · similarity 0.45
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