io_uring support for gRPC's C++ implementation

[Amirsaman Memaripour]

Hi,

Are there any plans to add io_uring support (or other alternatives to reduce the number/frequency of system calls) to gRPC, in particular the C++ implementation? If so, is there a timeline for this work to land? Otherwise, is the idea rejected for any specific reason?

[AJ Heller]

For gRPC C++, there are no immediate plans to add io_uring support, but it has been considered in the context of the EventEngine API. We have a fair amount of work around performance improvements happening right now, and we may return to this later on. In the meantime, the EventEngine API is public (though experimental), so folks can write their own implementations using io_uring if they wish.