[snvzz]

Because BSDs don't scale in that direction.

Dragonfly's design shows promise, but it's not anywhere near ready for supercomputers yet.

[frankharv]

Yes I agree most with your comments. The reason is NUMA. FreeBSD performance on NUMA is poor. It was only implemented in 2015. It still needs tuning.

Dragonfly seems to be hard at work on the problems.

http://lists.dragonflybsd.org/pipermail/users/2017-February/...