Linux 6.4 Has Many Networking Changes From A New Performance Tunable To More WiFi 7

[phoronix]

Phoronix: Linux 6.4 Has Many Networking Changes From A New Performance Tunable To More WiFi 7

With Linux running on everything from tiny single board computers with basic WiFi or Ethernet networking up through massive super-computer clusters, the Linux networking subsystem continues seeing immense improvements each kernel cycle. With Linux 6.4 the networking changes are heavy from new hardware support (including Apple M1 Pro/Max WiFi!) to continued work around WiFi 7 support as well as never-ending work on performance optimizations...

https://www.phoronix.com/news/Linux-6.4-Networking

[dimko]

How far in terms of performance is Linux kernel now from BSD when comes to networking?

[fitzie]

How far in terms of performance is Linux kernel now from BSD when comes to networking?

I don't think there's any king of the jungle as it comes to networking, as there's lots of custom tweaking done for either OS performing optimally. I wouldn't take anyone seriously if they say one or the other is superior. They were both written and developed in days with much slower networking generally, and have required significant changes to adapt to modern environments.

Here is a recent netflix presentation on getting 800gb on a single freebsd box:

https://papers.freebsd.org/2022/EuroBSDCon/gallatin-The_Other_FreeBSD_Optimizations-Netflix.files/euro2022.pdf

This performance patch from google was part of their "BIG TCP" effort, with some results mentioned here:

https://lore.kernel.org/netdev/[email protected]/