meo@chevpyr.chevron.com (Mike E. Osborne) (11/29/90)
Anyone out there know where to find the max number of processes per user (MAXPROCS in other AIX versions) in AIX 3.1 ? We seem to hit a limit of about 40 processes for users other than root and don't seem able to find any place to fix it. (40 is a small number for X applications) ((yes we have looked in info, tried various limits, SMIT, etc.)) Thanks in advance for the help. Mike Osborne meo@chevron.com -- Mike Osborne Mail: meo@chevron.com Chevron Oil Field Research Co 1300 Beach Blvd PO box 446 phone: (213)694-7597 La Habra, CA 90633-0446
matt@mathew.austin.ibm.com (Mathew Accapadi;3-3517) (11/30/90)
In article <659@chevpyr.chevron.com> meo@chevron.com (Mike E. Osborne) writes: >Anyone out there know where to find the max number of processes >per user (MAXPROCS in other AIX versions) in AIX 3.1 ? >We seem to hit a limit of about 40 processes for users other than >root and don't seem able to find any place to fix it. >(40 is a small number for X applications) >((yes we have looked in info, tried various limits, SMIT, etc.)) > The maximum number of processes for users is defined by the "maxuproc" attribute for the sys0 device. To list the attributes, you could do something like "lsattr -E -l sys0". To change the max number of processes, execute "chdev -l sys0 -a maxuproc=xxx" where xxx is the number you want to set it to. I suppose you could do this with smit also. -------------------------------------------------------------------------- Mathew Accapadi ...cs.utexas.edu!ibmaus!auschs!mathew.austin.ibm.com!matt --------------------------------------------------------------------------
ron@woan (Ronald S. Woan) (11/30/90)
In article <659@chevpyr.chevron.com>, meo@chevpyr.chevron.com (Mike E. Osborne) writes: Mike> Anyone out there know where to find the max number of processes Mike> per user (MAXPROCS in other AIX versions) in AIX 3.1 ? We seem Mike> to hit a limit of about 40 processes for users other than root Mike> and don't seem able to find any place to fix it. (40 is a small Mike> number for X applications) ((yes we have looked in info, tried Mike> various limits, SMIT, etc.)) Not exactly the most documented thing, but here it is: lsattr -E -l sys0 to show the current system attributes... To change: chdev -l sys0 -a maxuproc=<num> where <num> is the number you want to set it to... This was discussed in this newsgroup quit a few months ago in case you have this group archived... +-----All Views Expressed Are My Own And Are Not Necessarily Shared By------+ +------------------------------My Employer----------------------------------+ + Ronald S. Woan woan@peyote.cactus.org or woan%austin@iinus1.ibm.com + + other email addresses Prodigy: XTCR74A Compuserve: 73530,2537 +
frank@ulticorp.UUCP (Frank Cannavale III/1024000) (12/04/90)
In article <659@chevpyr.chevron.com> meo@chevron.com (Mike E. Osborne) writes: >Anyone out there know where to find the max number of processes >per user (MAXPROCS in other AIX versions) in AIX 3.1 ? Yes, maxuproc is configured into the 'system' device sys0. >We seem to hit a limit of about 40 processes for users other than >root and don't seem able to find any place to fix it. Enter, at superuser level, lsattr -H -E -l sys0 to display parameters and values >(40 is a small number for X applications) maxuproc default is 40... >((yes we have looked in info, tried various limits, SMIT, etc.)) Funny, it's not there. I checked too. However, the documentation for lsattr is available, just nothing much on sys0. Use chdev to change the parameters. For example: chdev -l sys0 -a maxuproc=NNN You know what to do for NNN :) Obviously, you can do this (lsattr & chdev) to all devices. -- Frank Cannavale III !uunet!ulticorp!frank The Ultimate Corp, E. Hanover, NJ "The Social Democratic government on Friday began dismantling the welfare state it built, proposing sharp cuts in benefits and state jobs to stop the country's economic decline." -- AP Stockholm, Sweden 10/26/90~ Too bad the US Congress doesn't read the news, it could learn something.
jensen@adobe.com (Freddy Jensen) (12/06/90)
In article <659@chevpyr.chevron.com> meo@chevron.com (Mike E. Osborne) writes: >Anyone out there know where to find the max number of processes >per user (MAXPROCS in other AIX versions) in AIX 3.1 ? >We seem to hit a limit of about 40 processes for users other than >root and don't seem able to find any place to fix it. >(40 is a small number for X applications) >((yes we have looked in info, tried various limits, SMIT, etc.)) > >Thanks in advance for the help. > Hi Folks, I have frequently run out of process slots on my RS/6000. The reason is that I run X windows with *MANY* windows. I called IBM, and got this answer: To look at the system configuration, become root and type: lsattr -E -l sys0 You will see that maxuproc is 40 (max 40 processes per user). AIX allows you to change that without rebuilding the kernel, or even rebooting. Just do: chdev -l sys0 -a maxuproc=80 And voila! you can now run 80 processes per user. If you start running low on paging space, send me email and I'll tell you how to increase it (again without rebuilding or rebooting). Freddy ------------- Freddy Jensen Display Postscript Group Adobe Systems Incorporated 1585 Charleston Road, P.O. Box 7900 Mountain View, CA 94039-7900 Internet: jensen@adobe.com adobe!jensen@sun.com adobe!jensen@decwrl.dec.com uucp: ...!{decwrl,sun,uunet,apple}!adobe!jensen phone: (415) 962-3869 / 961-4400