[thomasknowles]

Actually I would run ss over the netstat for such high concurrency connection as netstat hits /proc/net/tcp and it's quite slow. However, you need to have the tcp_diag module loaded otherwise it falls back to /proc/net/tcp.

[X-Istence]

You may not have read the entire article, but he clearly explains that their tech stack is FreeBSD + Erlang not Linux + Erlang.

There is no /proc/net/tcp on FreeBSD. Hell, there is no /proc unless it is specifically mounted by the administrator, but tools certainly don't use it to get data.

[thomasknowles]

I read it, I just presume people most users are linux based in here.