FUSE drivers are slow, but "wildly slow" is an overstatement.
Anyway, between FUSE, epoll, DMA, and userspace networking Linux is already enough of a microkernel to benefit from it; so when do our CPU oligopolists plan to turn their shared memory hardware into a useful message passing mechanism?
> FUSE drivers are slow, but "wildly slow" is an overstatement.
I can confirm this, I've played RPGMaker M{V,Z} games natively by swapping out the copy of NWJS¹ it shipped with and running it through a CIOPFS² mount.