The Debian Project has announced that with the next release, FreeBSD kernel will be used as the base for its distribution. It would also make Debian as an authentic UNIX, as FreeBSD is an authentic UNIX, as it is based on BSD 4.4.
Both FreeBSD & Linux are reliable and Servers running either software often stay up for years. But disk I/O of linux is non-synchronous by default which corrupts filesystem after system crash.
Freebsd’s disk I/O is high performance for transactions based applications for example databases. It is observerd that under heavy network load, the network performance of linux is 20-30% below of Freebsd under same hardware.
