Voxer is a really interesting case, as they have run a similar production load on Linux, then switched to SmartOS (Solaris), and now switched to FreeBSD.
Their staff are technically savvy, and I don't know of anyone else who has tested the options in this way, in production. They have a popular mobile app which turns your phone into a walkie talkie and more, and have millions of users.
Their staff are technically savvy, and I don't know of anyone else who has tested the options in this way, in production. They have a popular mobile app which turns your phone into a walkie talkie and more, and have millions of users.
I saw them interviewed about their move to FreeBSD recently: http://youtu.be/NGT3jpilYfE?t=15m
I like FreeBSD, but I have yet to run the same stack on multiple operating systems in production. That's a LOT of work!