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Scaling Beyond 10 Gigabit Networking

Peter P. Waskiewicz Jr. (peter.p.waskiewicz.jr@intel.com)

10 Gigabit networking is a fast-growing market in today's industry. Faster platforms, lower infrastructure costs, and a growing number of advanced features have driven this migration to higher bandwidth needs. However, as the platforms keep getting faster and keep growing in number of CPU cores and NUMA memory nodes, scaling networking becomes more and more challenging.

This paper will illustrate the challenges facing high I/O networking. It will focus on what has been done in the past year to help scale, including better NUMA locality, cacheline-aligned structures, and more efficient interrupt handling. Looking to the future, the paper will highlight ongoing areas for improvement, such as interrupt affinity policies with MSI-X, better NUMA scalability, working with increased CPU counts, all which are necessary to efficiently drive speeds beyond 10 Gigabit.



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