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memguard-rs
A Rust library that provides secure memory handling primitives including zeroization on drop, memory locking, constant-time comparison, and compile-time guarded regions, with zero dependencies and no_std support.
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FR-AI / ANALYSISWhy it is worth attention
It offers both an equivalence track that mirrors a Java production engine and an experimental high-performance track with fixed-point arithmetic, price-level books, and cache-optimized data structures, enabling a clear comparison and gradual cutover.
Who it is for
- Crypto exchange backend engineers
- Rust systems programmers working on low-latency systems
- High-frequency trading firms evaluating Rust for exchange components
- DevOps teams managing exchange service migration
Use cases
- Replacing existing Java-based matching engines with a Rust equivalent while preserving behavior
- Building a new low-latency cryptocurrency exchange with high throughput requirements
- Benchmarking and comparing matching engine implementations under realistic order flow
- Experimenting with advanced optimizations like ART radix indexes and asynchronous WAL
Strengths
- Dual-track architecture (match-core and match-core-hp) for both production stability and performance exploration
- Comprehensive microbenchmarking with fair_compare and Criterion, plus published benchmark results
- Rich documentation including architecture specs, cutover runbooks, and OSS best practices
- Health endpoints and Prometheus metrics integration for operational readiness
Considerations
- The high-performance engine (match-core-hp) is experimental and not the default production engine
- RocketMQ transport adapter is not yet wired; only memory transport available
- Spot shell is currently a stub with no implementation
- Build requires nightly Rust 1.97.1+ and specific toolchain configuration
README quick start
Quick Start
Description
Rust dual-track crypto matching engines (Apache-2.0). Companion to lanpishu6300/crypto-exchange.
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