Systems Programming for Low-Latency Systems and HFTs

<p>Follow engineer Priya Raman at Meridian Velocity Systems as she debugs a tail-latency incident in Helios, the company's order-execution gateway, after clients miss fills during a volatility spike. Across five story-driven lessons, you'll rebuild a hot path in real C++: redesigning data structures for CPU cache locality, replacing a mutex with a lock-free SPSC ring buffer, eliminating syscalls and heap allocations from the critical path, adopting kernel-bypass networking with AF_XDP, and building a proper tail-latency measurement pipeline that avoids coordinated omission. Theory is introduced exactly where it's needed to explain why each optimization works, not as an upfront lecture.</p>

Tools: C++, Cache Locality, Lock-Free Data Structures, Kernel Bypass Networking, Latency Measurement