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io_uring (previously known as aioring) is a Linux kernel system call interface for storage device asynchronous I/O operations addressing performance issues with similar interfaces provided by functions like read()/write() or aio_read()/aio_write() etc. for operations on data accessed by file descriptors.

Development is ongoing, worked on primarily by Jens Axboe at Meta.

Source: en.wikipedia.org/wiki/io_uring