eRPC

The most common example is DPDK [1]. It's a framework for building bespoke networking stacks that are usable from userspace, without involving the kernel. You'll find DPDK mentioned a lot in the networking/HPC/data center literature. An example of a backend framework that uses DPDK is the seastar framework [2]. Also, I recently stumbled upon a paper for efficient RPC networks in data centers [3]. If you want to learn more, the p99 conference has tons of speakers talking about some interesting challenges in that space. [1] https://www.dpdk.org/. [2] https://github.com/scylladb/seastar [3] https://github.com/erpc-io/eRPC

My side project has been to rewrite https://github.com/erpc-io/eRPC which does RPCs over UDP with some congestion control supposedly quite fast. Paper: https://www.usenix.org/system/files/nsdi19-kalia.pdf. I never got the code to work in AWS; I believe the author focused on Mellanox NICS but that's not really commodity H/W, which is where my interests lay. So I dug into it .. and well I'll have my own library soon. I should be able to send UDP w/o congestion control sometime this week. eRPC uses DPDK (100% user space NIC TX/RX control) plus the author's own other ideas to get performance. Since I'm getting into DPDK way, way late in the game, I hope and believe DPDK is and will be the better way to go than to turn to kernel fix-ups. Getting the kernel out of the way with pinned threads seems -- or more exotic with special H/W if preferred

But where is the RPC? This just seems like messaging EDIT: Found this... https://github.com/erpc-io/eRPC