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Full Discussion: Assigning PID for a Process
Operating Systems AIX Assigning PID for a Process Post 302634007 by bakunin on Wednesday 2nd of May 2012 05:59:11 PM
Old 05-02-2012
It is not possible to assign specific PIDs to processes, because they are generated by the kernel at the start of each process. In fact Unix PIDs have to be somewhat upredictable (they are not used successively by incrementing a counter by 1 or something such.)

Here is an explanation of how the AIX kernel creates PIDs.

I hope this helps.

bakunin
 

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DTRUSS(1)						    BSD General Commands Manual 						 DTRUSS(1)

NAME
dtruss -- Trace system calls and userland stacks using DTrace SYNOPSIS
dtruss [-acdefholLs] [-t syscall] [-n name -p pid command] DESCRIPTION
The dtruss utility traces system calls and (optionally) userland stack traces for the specified programs. The following options are available: -p pid Trace the process with PID pid. -n name Trace the process with name name. -t syscall Trace the specified syscall only. -a Print all details. -c Print syscall counts. -d Print relative times (in microseconds). -e Print elapsed times (in microseconds). -f Follow the children processes. -l Force printing PID / TID. -o Print time spent on CPU. -s Print userland stack backtraces. -L Don't print PID / TID. -b bufsize Specify the DTrace buffer size. EXIT STATUS
The dtruss utility exits 0 on success, and >0 if an error occurs. SEE ALSO
dtrace(1) HISTORY
The dtruss utility comes from the DTraceToolkit and was first imported into FreeBSD 9.0. AUTHORS
Brendan Gregg BSD
August 26, 2010 BSD
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