370,000 msg/sec isn’t too high. Typical exchange message size is 100 bits, so we are talking about 37 Mbps, , less than 0.1% of a 100 Gbps network capacity.
My networking mentor CSY and I both believe it’s entirely possible to host 8 independent threads in a single process to handle the 8 independent message channels. Capacity would be 296 Mbps on a single NIC and single PID.
I feel a more bandwidth-demanding multicast application is video-on-demand where a single server may need to simultaneously stream different videos.
Q: how about world cup final real-time multicast video streaming to millions of subscribers?
%%A: now I think this is not so demanding, because the number of simultaneous video streams is one