From every benchmark I've seen so far, Linux has always been faster than the BSDs.

For example, look at these benchmarks from 2003[1]. Makes you wonder where the myth comes from.

The newest benchmark I could find[2] points in the same direction.

Does anyone have more recent data?

[1] http://bulk.fefe.de/scalability/ [2] https://matteocroce.medium.com/linux-and-freebsd-networking-...