I'm interested in per-process network I/O counters, like those in
/proc/net/dev and found what I thought was it under
/proc/<pid>/net/dev. But it seems that was too easy because they contain the same counters as the system.
If I diff between system and
<pid> I get the same counters*. So that makes me wonder what is it supposed to represent? Or is it just a way to allow a specific process to read
/proc/net/dev by setting permissions to
/proc/net/<pid>/dev and not globally?
man proc does not document this and neither does http://man7.org/linux/man-pages/man5/proc.5.html
Distro: CentOS 7.1 w/ kernel
diff <(cat /proc/<pid>/net/dev) <(cat /proc/net/dev)