> A contrived test of network performance, using httpd(8) to serve a > large file from an mfs ramdisk over plain http, yields about 175 mbit/s > sustained transfer speed. I was not expecting to reach even 100 mbit/s > so this was a positive surprise, even if it's nowhere near the full > gigabit that other OSes can squeeze out of this board. > > > MFS isn't particularly fast, tcpbench is better if you want to isolate > network from storage io performance. (I was surprised to see pretty > much a full Gb/s from tcpbench on rpi4!)
Thanks for the suggestion. I'm guessing the bottleneck is equal part httpd(8), equal part mfs; I can both dd and copy from the mfs ramdisk at about 85 mbyte/s. With tcpbench(1) the transfer speed reaches up to 370 mbit/s. Not bad!
