i'm setting up a kubernetes node and searching the fastest way to communicate (IPC) between a host and a pod. (IP/TCP is to slow)

My first thought was to write an own character device driver as Virtual File System but a could'nt find a way to set this up correctly inside a kubernetes domain.. (HostPath / storage volumes?)

Because of a realtime requirement TCP/IP is not the best technology for this (in my opinion)

I'd like to control the access to the real time data. That's why i don't want to use Shared Memory directly for this purpose

Is kubectl supporting own shared character drivers between host and PODs?

Thank you for help in advance!