new in Linux Kernel > 5.1 io_uring much faster aio I/O

[gigatexal]

https://kernel.dk/io_uring.pdf

the tl;dr is that this is a new kernel interface designed at being more performant for I/O
And at the end of the PDF with benchmarks.

https://kernel.dk/io_uring-whatsnew.pdf

 

[MrCalvin]

Would I need to change any system settings to take advantage of this or is so low-level that just running kernel > 5.1 is sufficient and "everything" will gain this better IO?
I'm especially interested in regards to KVM/QEMU VM storage.

 

[gigatexal]

I’m not sure. I think we would need devs to take advantage of it for us to benefit.