Performance benefits of the approach seem nice, with SPDK reducing kernel context switches, and direct NVMe to reduce latency in the storage path. This does require a more specialized setup, than Neon's tiered architecture (Safekeepers → Pageservers → cloud storage), at the expense of storage cost obviously.

There's another thread here: https://news.ycombinator.com/item?id=44016289

Might make sense to merge.

If you don't mind me asking I'm curious, what tool did you use for the diagrams?