The following is a demonstration of the pidpersec.d script.
Here the program is run on an idle system,
# ./pidpersec.d
TIME LASTPID PID/s
2005 Jun 9 22:15:09 3010 0
2005 Jun 9 22:15:10 3010 0
2005 Jun 9 22:15:11 3010 0
2005 Jun 9 22:15:12 3010 0
2005 Jun 9 22:15:13 3010 0
^C
This shows that there are now new processes being created.
Now the script is run on a busy system, that is creating many processes
(which happen to be short-lived),
# ./pidpersec.d
TIME LASTPID PID/s
2005 Jun 9 22:16:30 3051 13
2005 Jun 9 22:16:31 3063 12
2005 Jun 9 22:16:32 3073 10
2005 Jun 9 22:16:33 3084 11
2005 Jun 9 22:16:34 3096 12
^C
Now we can see that there are over 10 new processes created each second.
The value for lastpid confirms the rates printed.