[richbhanover]

And there's good news on the Wi-Fi front as well. Many of the same people who brought us fq_codel/cake have new algorithms for "Making Wi-Fi Fast".

Their paper tells how they've reduced bufferbloat as well as increasing "airtime fairness" in the Wi-Fi stack. The paper, "Ending the Anomaly: Achieving Low Latency and Airtime Fairness in WiFi", is now available as a preprint at: https://arxiv.org/abs/1703.00064 The conclusion of the paper states:

"We have developed a novel two-part solution to two large performance problems affecting WiFi: Bufferbloat and the 802.11 performance anomaly.

"The solution consists of a new integrated queueing scheme tailored specifically to eliminating bufferbloat in WiFi, which reduces latency under load by an order of magnitude. Leveraging the queueing structure, we have developed a deficit based airtime fairness scheduler that works at the access point with no client modifications, and achieves close to perfect fairness in all the evaluated scenarios, increasing total throughput by up to a factor of 5.

"Our solution reduces implementation complexity and increases accuracy compared to previous work, and has been accepted into the mainline Linux kernel, making it deployable on billions of Linux-based devices."

Fun reading! Oh, and it's available in LEDE today.