Real async file IO on Linux?

[Alan Bateman]

Avinash Lakshman wrote:
> Is this the same for AIO network I/O or is it truly asynchronous?
On Windows it uses I/O completion ports, on Solaris the event port 
mechanism and on Linux it uses epoll (although in a slightly different 
mode that the epoll-based Selector implementation). As always we try to 
use the whatever the best mechanism is on the platform.

-Alan.