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MaxNumberOfProcesses - UNIX

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Operating Systems Solaris MaxNumberOfProcesses - UNIX
# 1  
Old 04-07-2014
MaxNumberOfProcesses - UNIX
Hi All,

Could you please let me know the way by which we can find : MaxNumberOfProcesses in AIX,Linux,Soalris,HP-UX machines.

Is there any command or any specific calue set for this?
# 2  
Old 04-07-2014
This is a Kernel tunable and so OS specific...
# 3  
Old 04-07-2014
ok vbe..Could you please let me know how can we echo these values..
Coud you give me some example.
# 4  
Old 04-07-2014
On HP-UX and solaris you can try to use sysdef:
HP-UX:
Code:
$ sysdef |egrep [nu]pr*|grep -v pt
maxuprc                     450          -          3-                   -
nproc                      3712          -         10-                   -

Solaris:
Code:
$ sysdef|grep processes
   30000        maximum number of processes (v.v_proc)
   29995        maximum processes per user id (v.v_maxup)

# 5  
Old 04-07-2014
Solaris:
Code:
echo pidmax/D | mdb -k
echo max_nprocs/D | mdb -k

Both normally have the same value, one is the size of the process table, the other the maximum number of simultaneous processes.
Default is 30000.

Linux:
Code:
sysctl kernel.pid_max

Gives the size of the process(-thread) table.
Default is 32768

HP-UX:
Code:
kctune nproc

Gives the maximum number of simultaneous processes. Default is 4200. Process table size is fixed to 30000.
Since HP-UX 11.31:
Code:
kctune process_id_max

Process table size. Default is 30000.
Last edited by MadeInGermany; 04-07-2014 at 02:31 PM..
# 6  
Old 04-07-2014
If the per-user compile-time limit suffices, you can use getconf CHILD_MAX. Note that the runtime limit may differ.

Regards,
Alister
# 7  
Old 04-08-2014
thanks a lot .. the commands you priovided was of very much use.

On simillar front can MaxProcessMemorySize be retrived in unix ?
Please suggest.
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