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Kernel Bypass Ring Buffer Polling

Hard · systems · Quant Developer interview question · systems, low-latency, c++, hft

Kernel bypass technologies like Solarflare's EF_VI or DPDK reduce network latency in high-frequency trading by allowing the Network Interface Card (NIC) to write packets directly into user-space memory via DMA. To synchronize the hardware producer and software consumer without expensive locking mechanisms, a generation bit protocol is often employed within a circular ring buffer. This ensures data consistency and maximizes throughput in latency-sensitive financial applications. Task Implement t