Cilium

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.

eBPF深度实战:从BPF字节码到Linux内核可观测性全栈革命

eBPF(Extended Berkeley Packet Filter)是Linux内核革命性的可编程技术,本文深度解析eBPF架构总览(BPF虚拟机/Maps数据结构/Hooks挂载点),从内核态C程序到用户态libbpf+BPF CO-RE加载器的完整编程模型,验证器安全保证机制,覆盖XDP线速DDoS防御、零侵入系统调用追踪、Uprobe运行剖析、LSM容器安全防护等生产级实践,对比DPDK/SystemTap/perf/eBPF性能差异,总结生产部署陷阱与最佳实践。