Loading ...
Sorry, an error occurred while loading the content.
 

Kernel Parameters

Expand Messages
  • magainps
    David, As per your suggestion, MSGMAX should be the max message size preferably it should be 256KB and max queue size that is MSGMNB should be the two times of
    Message 1 of 7 , Jan 31, 2007
      David,

      As per your suggestion, MSGMAX should be the max message size
      preferably it should be 256KB and max queue size that is MSGMNB should
      be the two times of the message size...can you also suggest the way to
      calculate the other parameters value such as MSGSEG,
      MSGTQL,SEMMAP,SEMMNI,SEMMNU,SEMUME,SEMMSL,SHMMIN,SHMMNI,SHMSEG.

      Formula for calculating the SEMMNI is SEMMNS=SEMMNI*SEMMSL, its also
      been suggested to check using boot -c command on tmadmin but for
      SEMMNI it is showing A+1 which is bit confusing..

      chaps
    • David Kurtz
      As far as Tuxedo is concerned, the only kernel parameters you need to worry about changing are those relating to the message queues Tuxedo only uses 3 shared
      Message 2 of 7 , Feb 1, 2007
        As far as Tuxedo is concerned, the only kernel parameters you need to worry about changing are those relating to the message queues
         
        Tuxedo only uses 3 shared memory segment per domain, of which the Bulletin Board accounts for most of the size.  You simply need sufficent room for the BBs in all domains.  I've never had to increase those parameters.
         
        You need to ensure that you have the ability to create sufficient message queues and also that
         
        MSGMNI (number of message queues) * MSGMNB (message queue size) >= MSGSEG (number of message segments) * MSGSSZ (message segment size)
         

        regards
        _________________________
        David Kurtz
        Go-Faster Consultancy Ltd.
        tel: +44 (0)7771 760660
        fax: +44 (0)7092 348865
        mailto:david.kurtz@...
        web: www.go-faster.co.uk
        Book: PeopleSoft for the Oracle DBA: http://www.psftdba.com
        The PeopleSoft DBA Blog: http://psftdba.blogspot.com
        PeopleSoft DBA Forum: http://groups.yahoo.com/group/psftdba

        -----Original Message-----
        From: psftdba@yahoogroups.com [mailto:psftdba@yahoogroups.com]On Behalf Of magainps
        Sent: 31 January 2007 14:32
        To: psftdba@yahoogroups.com
        Subject: PeopleSoft DBA Forum Kernel Parameters

        David,

        As per your suggestion, MSGMAX should be the max message size
        preferably it should be 256KB and max queue size that is MSGMNB should
        be the two times of the message size...can you also suggest the way to
        calculate the other parameters value such as MSGSEG,
        MSGTQL,SEMMAP, SEMMNI,SEMMNU, SEMUME,SEMMSL, SHMMIN,SHMMNI, SHMSEG.

        Formula for calculating the SEMMNI is SEMMNS=SEMMNI* SEMMSL, its also
        been suggested to check using boot -c command on tmadmin but for
        SEMMNI it is showing A+1 which is bit confusing..

        chaps

      Your message has been successfully submitted and would be delivered to recipients shortly.