If the program has a process identifier P, will the child processes (and their children) have process identifiers that are strictly greater than P?
When process identifiers are reused, which process identifiers are selected, for example, is the lowest process identifier available?
From http://en.wikipedia.org/wiki/Process_identifier
, 0 , . , 300 . Mac OS X HP-UX 100. , PID, . , , , . , PID. [1] , MPE/iX, PID, .
: https://superuser.com/questions/135007/how-are-pids-generated
, . id . , , , , pid 32768 pid, /proc/sys/kernel/pid _max, pid. pid , , , . , fork().