From 5000ns to 200ns
5 Modern C++ Techniques Live Demo
In the performance-critical domain of High-Frequency Trading (HFT), processing the Financial Information eXchange (FIX) protocol with minimal latency is a constant challenge. This session introduces NexusFix, a modern, header-only C++23 library designed to achieve sub-200ns parsing latency, delivering up to a 25x improvement over industry standards like QuickFIX.
In this demonstration, we will dive into the technical optimizations behind these results. We will showcase how to leverage C++23 features—including std::expected for exception-free error handling and consteval for compile-time field mapping—combined with SIMD (AVX2/AVX-512) kernels that achieve up to 13x throughput improvement for ultra-fast delimiter scanning.
Attendees will see a Live Demo featuring real-time performance benchmarks and a walkthrough of the zero-copy architecture. Furthermore, we will briefly discuss the AI-human collaborative workflow used to build this library, demonstrating how modern AI tools can assist in writing high-quality, high-performance C++ code. Whether you are interested in low-latency systems or the latest C++23 standards, this session offers practical insights into the future of financial software development.
Larry Ge
A senior software engineer with substantial experience in high-performance systems, Linux backend development, and embedded software. He specializes in modern C++ (C++17), system performance optimization, and building scalable backend components, with strong experience in Linux tooling, networking protocols, and automated testing.