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Lock-Free SPSC Ring Buffer

Hard · low_latency · Quant Developer interview question · concurrency, lock-free, atomic, c++17, optimization

Low-latency financial systems rely on lock-free data structures to minimize thread contention and context switching during market data streaming or order execution. The Single-Producer Single-Consumer (SPSC) ring buffer utilizes atomic indices and memory barriers to ensure thread safety without the overhead of mutexes. This approach maximizes throughput in high-frequency trading environments where microsecond delays are critical. Task Implement the SPSCQueue class in C++17 to manage a fixed-siz