Offloading I/O to Dedicated Cores: An Asymmetric io_uring Backend for Seastar and ScyllaDB

What this post added

Introduced an asymmetric io_uring backend for Seastar. This backend dedicates specific cores to handle I/O operations, allowing application cores to focus solely on computation. It aims to reduce context switching, cache pollution, and latency variance by separating I/O processing from application logic, offering an alternative to the symmetric io_uring and linux-aio backends.