How Linux io_uring and XDP Combine for High-Speed Networking
transcript
show notes
Episode 156 of Fexingo's Linux podcast dives into the rare but powerful pairing of io_uring and XDP for high-speed networking. Lucas and Luna explain how io_uring's asynchronous I/O model meets eXpress Data Path's early packet processing, cutting latency and CPU overhead in demanding server workloads. They use a concrete example from a typical cloud gateway, walk through the mechanics of both technologies, and discuss where the combination shines—and where it doesn't. If you've wondered how modern Linux handles millions of packets per second without melting the CPU, this episode gives you the mental model and the pitfalls to watch. No fluff, just the technical details that matter for sysadmins, developers, and anyone running network-heavy services.
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