I really like NetBSD. It supports Xen[0], it has the awesome multithreaded NPF[1], the CHFS filesystem tailored for SSDs[2], and support for rump kernels[3]. [

I really like NetBSD. It supports Xen[0], it has the awesome multithreaded NPF[1], the CHFS filesystem tailored for SSDs[2], and support for rump kernels[3]. [0]: https://wiki.netbsd.org/ports/xen/ https://wiki.netbsd.org/ports/xen/ [1]: https://en.wikipedia.org/wiki/NPF_(firewall) https://en.wikipedia.org/wiki/NPF_(firewall) [2]: https://en.wikipedia.org/wiki/CHFS https://en.wikipedia.org/wiki/CHFS [3]: http://rumpkernel.org/ http://rumpkernel.org/