spdk and I go way back. I'm confident it'd be about the same, possibly ~200-300MB/s more, I was pretty close to the rated throughput of the drives. Io_uring has really closed the gap that used to exist between the in kernel and userspace solutions.
With the Intel connection they might have explicit support for DDIO. Good idea.
With the Intel connection they might have explicit support for DDIO. Good idea.