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Explore transport tunings built using eBPF to enhance network performance and reliability in this Linux Plumbers Conference talk. Examine examples of problems and solutions for both intra-datacenter (small RTT) and inter-region (long RTT) networks. Learn how the BPF attach-point (struct_ops) was utilized to implement a TCP congestion control change aimed at improving network performance. Follow the journey of prototyping and deploying custom congestion control algorithms, and discover how tcp_iter addressed challenges with existing connections and version management. Gain insights into open challenges for the eBPF community based on the speakers' experiences.
Syllabus
Safe sharing of the network with eBPF - Balasubramanian Madhavan, Prankur Gupta
Taught by
Linux Plumbers Conference