networking

eBPF Networking Deep Dive: From XDP Packet Processing to TCP Tracing and Production Deployment

Comprehensive deep-dive into eBPF networking internals: XDP packet processing at driver level, Traffic Control subsystem, socket-level tracing with kprobes, TCP state machine and retransmission analysis, DNS query monitoring, network latency distribution and throughput measurement, production deployment guide with kernel configuration, containerized environments, and performance optimization strategies.

io_uring Send-Zero-Copy 与 Registered Buffers 深度实战

深入剖析 io_uring 的 Send-Zero-Copy (IORING_OP_SEND_ZC) 机制,从协议语义、registered buffer 与 provided buffer 的选择策略、多缓冲区协作、错误恢复到生产可用的 ZC 网络服务骨架构建,涵盖内核 6.7+ 的最新特性与实测性能数据。