Features/IOUring

io_uring is a Linux API for asynchronous I/O. It is designed for higher performance than the older Linux AIO API that QEMU supports.

Aarushi Mehta is implementing io_uring support in QEMU as part of the Outreachy internship program.

Code

• Aarushi's git repo: https://github.com/weatherwaxed/qemu/tree/mirroraio

Status

Early development. Not yet ready for testing.

How to use it

io_uring is an alternative AIO engine in QEMU. Instead of specifying -drive aio=threads or -drive aio=native, use -drive aio=io_uring.