Can someone explain the structure of a Pid (Process Identifier) in Erlang?

Question

Can someone explain the structure of a Pid in Erlang?

Pids looks like this : , e.g. <0.30.0> , but i would like to kno

Answer 1

Process id < A.B.C > is composed of:

• A, node id which is not arbitrary but the internal index for that node in dist_entry. (It is actually the atom slot integer for the node name.)
• B, process index which refers to the internal index in the proctab, (0 -> MAXPROCS).
• C, Serial which increases every time MAXPROCS has been reached.

The creation tag of 2 bits is not displayed in the pid but is used internally and increases every time the node restarts.