IDTUNE(1M)          RISC/os Reference Manual           IDTUNE(1M)



NAME
     idtune - attempts to set value of a tunable parameter

SYNOPSIS
     /etc/conf/bin/idtune  [ -s suffix ]  [ -f | -m ]  name
     value

DESCRIPTION
     This command attempts to set the value of a tunable parame-
     ter.  The tunable parameter to be changed is indicated by
     name.  The desired value for the tunable parameter is value.

     If there is already a value for this parameter (in any of
     the master files located in /usr/src/uts/mips/master.d), the
     user will normally be asked to confirm the change with the
     following prompt:

          Tunable Parameter name is currently set to old_value.
          Is it OK to change it to value? (y/n)

     If the user answers y, the change will be made.  Otherwise,
     the tunable parameter will not be changed, and the following
     message will be displayed:

          name left at old_value

     However, if the -f (force) option is used, the change will
     always be made and no messages will ever be given.

     If the -m (minimum) option is used and there is an existing
     value which is greater than the desired value, no change
     will be made and no message will be given.

     If name represents a tunable parameter belonging to the ker-
     nel (e.g., NPROC) and the -s suffix option is used, then the
     kernel.rxxxxsuffix file will be used. If the -s option is
     not used, then the kernel.rxxxxlocal or
     kernel.rxxxxijclocal file will be used. If a local file
     does not exist, one will be created automatically.

     If system tunable parameters are being modified as part of a
     device driver or application add-on package, it may not be
     desirable to prompt the user with the above question.  The
     add-on package Install script may choose to override the
     existing value using the -f or -m option.  However, care
     must be taken not to invalidate a tunable parameter modified
     earlier by the user or another add-on package.

     In order for the changed parameter to become effective, the
     UNIX System kernel must be rebuilt and the system rebooted.





                        Printed 11/19/92                   Page 1

IDTUNE(1M)          RISC/os Reference Manual           IDTUNE(1M)



DIAGNOSTICS
     The exit status will be non-zero if errors are encountered.

SEE ALSO
     idbuild(1M).

ORIGIN
     Prime Computer, Inc.















































 Page 2                 Printed 11/19/92