It seems like a lot of performance optimizations that used to require custom kernels can now be implemented using io_uring instead. Does anyone know if any such performance improvements are making their way into places where they can be felt by those of us working higher up the tech stack? (E.g. if nginx, node or similar got faster networking or disk access)
Yes, I think io_uring is slowly making its way onto Java ecosystem. Example: https://github.com/netty/netty-incubator-transport-io_uring
I guess it will go into the JVM too.