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a) There have been libraries supporting io_uring on the JVM for many years now.

b) SycllaDB is not bleeding edge. It uses the relatively old now DPDK.

c) There are countless reactive stream implementations e.g. https://vertx.io/docs/vertx-reactive-streams/java/

Compared to what the JVM offers, Syclla is certainly way ahead - happy to hear what the latest greatest approaches are.

I'm very aware of various reactive stream impls - I was saying that this work should plug into them rather than reinventing the wheel.

I thought DPDK would still be faster than io_uring.