Io_uring should be outperforming both - you can configure the read ahead optimally, there’s no page faults, and there’s no copies as there is with buffered I/O:

Io_uring should be outperforming both - you can configure the read ahead optimally, there’s no page faults, and there’s no copies as there is with buffered I/O: [1] https://archive.is/vkdCo https://archive.is/vkdCo