NAME

config/auto/aio.pm - Test for AI/O

DESCRIPTION

Determines whether the platform supports asynchronous input/output.

From the documentation to Marc Lehmann's CPAN module IO::AIO (http://search.cpan.org/dist/IO-AIO/AIO.pm):

"Asynchronous means that operations that can normally block your program (e.g. reading from disk) will be done asynchronously: the operation will still block, but you can do something else in the meantime. This is extremely useful for programs that need to stay interactive even when doing heavy I/O (GUI programs, high performance network servers etc.), but can also be used to easily do operations in parallel that are normally done sequentially ...."