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Networking Performances in the Linux Kernel, Getting the most out of the Hardware

Talkat FOSDEM 2021 · on Sunday, 2021-02-07· at 13:00· D.embedded· [linux-and-operating-systems, networking]

speaker

name:Maxime Chevallier
bluesky:minimaxwell.bsky.social

resources

video:https://video.fosdem.org/2021/D.embedded/network_performance_in_kernel.mp4
slides:https://fosdem.org/2021/schedule/event/network_performance_in_kernel/attachments/slides/4433/export/events/attachments/network_performance_in_kernel/slides/4433/chevallier_network_performance_in_the_linux_kernel.pdf

summary

Explains how the Linux networking stack and modern NIC features are used to maximize packet throughput on everything from servers to embedded systems. Covers specific technologies and techniques: NAPI for batch processing, queue management with RSS/RPS/XPS, flow steering and filtering via ethtool and tc, and the recent XDP framework, with guidance on configuring each to extract best performance from hardware.

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