zerocopy network

[quininer]

I had this idea long ago, and the poll-based API is not suitable for zerocopy network because it has similar problems as io-uring. It needs to make kernel hold buffer ownership.

I tried it with Sink, but it didn't finish in the end. I think it will be more applicable to io-uring.

Related

• https://www.kernel.org/doc/html/v4.15/networking/msg_zerocopy.html
• https://lwn.net/Articles/726917/
• https://lwn.net/Articles/752188/
• https://lwn.net/Articles/773106/

[quininer]

https://lore.kernel.org/io-uring/CAM1kxwgKGMz9UcvpFr1239kmdvmKPuzAyBEwKi_rxDog1MshRQ@mail.gmail.com/

[SchrodingerZhu]

any detail on the potential difficulties？

[quininer]

I don't think there is any difficulty, but the crate now more forcus for file io.