Kernel Asynchronous I/O (AIO) Support for LinuxOverview AIO enables even a single application thread to overlap I/O operations with other processing, by providing an interface for submitting one or more I/O requests in one system call (io_submit()) without waiting for completion, and a separate interface (io_getevents()) to reap completed I/O operations associated with a given completion group. Support for kernel AIO has been included in the 2
