> Is there some conclusive recent benchmark about this. The post uses a 2014 post about ipv6 at Facebook, which I think is far from definitive today. Especially

> Is there some conclusive recent benchmark about this. The post uses a 2014 post about ipv6 at Facebook, which I think is far from definitive today. Especially more since it "forgot" to mention that Facebook intended to enhance the "Linux kernel network stack to rival or exceed that of FreeBSD." Did they succeed over these 8 years ? I would not be surprised if there still were some cases where FreeBSD could do better. The network stack in particular has a vast amount of performance heuristics and tuning where you can just happen to hit the right or wrong side of some performance jump depending on your exact case, for example. But to go from there to the network stack is more performant is puzzling. There are certainly cases where the Linux network stack is more performant than FreeBSD -- search for linux vs freebsd network performance and you'll find benchmark tests and complaints and anecdotes around the place including freebsd forums and mailing lists where FreeBSD is slower, and yet FreeBSD proponents would (rightly) say these are not proof Linux's network stack is faster and there might be all sorts of reasons for the differences. So you can't have it both ways. Netflix uses FreeBSD for some things yes. Not sure if number of big internet corporations using an OS would be a favorable metric for FreeBSD either. Again you can't have it both ways. Netflix says FreeBSD is capable of performing well in that kind of environment, it does not say that it outperforms Linux in general or even in that environment. Any more than Google says the opposite.