Experimental "UBD" Driver Posted As IO_uring-Based User-Space Block Driver

[phoronix]

Phoronix: Experimental "UBD" Driver Posted As IO_uring-Based User-Space Block Driver

Ming Lei of Red Hat has published an early implementation of a IO_uring based user-space block driver for Linux...

https://www.phoronix.com/scan.php?page=news_item&px=UBD-User-Space-IO_uring-Block

[uid313]

How is this different from FUSE?
Is this the same thing as FUSE?
Maybe FUSE could use IO_uring.

[NobodyXu]

How is this different from FUSE?
Is this the same thing as FUSE?
Maybe FUSE could use IO_uring.

FUSE is filesystem in userspace.

UBD is userspace block driver.

They operate on different level here.

FUSE could use io-uring, in fact, there's something called fuseuring https://github.com/uroni/fuseuring that demonstrates use of io-uring with FUSE.

[rafanelli]

thanks you both. i had exactly the same question.

[yump]

So this is a higher-performance replacement for nbd?