Afaik, Nginx used this hack for aio on FreeBSD many years. It is superrior to aio on Linux. That is why Netflix used nginx together with FreeBSD. Now nginx cou

Afaik, Nginx used this hack for aio on FreeBSD many years. It is superrior to aio on Linux. That is why Netflix used nginx together with FreeBSD. Now nginx could use threads for file io, and linux file performance became ok as well.