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Sunday, February 7 • 11:30 - 12:10
Kernel Network Stack Challenges at 100Gbit/s speeds

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As network speeds continue to increase from 10Gbit/s, to 40Gbit/s, and very soon to 100Gbit/s the rate at which packets can arrive increases, and as a result the amount of of time to process packets decreases to as little as 6.7ns per packet at 100Gbit/s.

This talk explains the challenges the kernel network stack is facing, and describe some strategies and mitigation techniques to handle these increasing network speeds.

Recent improvement to the TX layer will be explained, but it cannot standalone. Further improvements to the RX layer and qdisc layer are still needed.

The memory subsystem is also pressured to its limits, and plumbering and cooperation between networking and MM (Memory Management) kernel developers are needed.

avatar for Jesper Dangaard Brouer

Jesper Dangaard Brouer

Linux Kernel Developer, Red Hat
Jesper Dangaard Brouer is Principal Kernel Engineer at Red Hat, and is part of the team that maintains the Linux Kernel Network Stack. He is working from the comfort of this home in Denmark, outside Copenhagen. He has participated in several invitation only developer conferences... Read More →

Sunday February 7, 2016 11:30 - 12:10 CET
e. E104 (72 places)