For what it's worth, Sepherosa Ziehau has been putting a lot of work into reducing CPU use on high-bandwidth connections:
http://lists.dragonflybsd.org/pipermail/users/2014-March/128240.html http://lists.dragonflybsd.org/pipermail/commits/2014-March/269653.html On Sat, May 3, 2014 at 6:54 AM, Wojciech Puchar < woj...@wojtek.tensor.gdynia.pl> wrote: > as my friend advised me, i did flood test - generated lots of random UDP > packets with size between 52 and 100 bytes. > > Actually low end ethernet card in my laptop was a limit (rl), but compared > FreeBSD 10 with custom kernel and dragonfly 3.6 with generic kernel (that > have diagnostics check compiled by default). > > dragonfly used about 3 times less CPU. > > no tests on gigabit or 10 gigabit ethernet and multicore machine for now. > > quite good. > > CPU load on more normal cases (like transfering files using rcp) is lower > too, but difference is smaller like 1.5-2 times. >
