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Hard · networking · Quant Developer interview question · dpdk, ring-buffer, kernel-bypass, networking, packet-processing, hft-infra
In high-frequency trading, DPDK (Data Plane Development Kit) is used to process market data by polling a hardware RX ring buffer, bypassing the slow kernel network stack. A critical performance challenge is balancing the poll rate and burst size to prevent the ring from overflowing and dropping packets during high-volume bursts. This simulation models the ring buffer's behavior to help engineers perform capacity planning and tune system parameters for a live trading environment. Task Implement