optisa(1)

NAME

     optisa - determine which variant instruction set is  optimal
     to use

SYNOPSIS

     optisa instruction_set...

DESCRIPTION

     optisa prints which  instruction_set out of the ones  speci-
     fied  in the command will perform best on  this machine.  In
     this case, ``best''  is  defined  by  the  order   in  which
     instruction  set names are returned by  isalist(1). Possible
     values for instruction_set are given in  isalist(5).

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|

EXIT STATUS

     The following exit values are returned:

     0     One of the  instruction_set values  you  specified  is
           printed by this command.

     1     There is no output; that is, this machine  cannot  use
           any   instruction_set  that  you  specified  with  the
           optisa command.

SEE ALSO

     isalist(1), uname(1), attributes(5), isalist(5)

NOTES

     optisa  is  preferable  to   uname  -p  or   uname  -m  (see
     uname(1)) in determining which of several binary versions of
     a given program  should be used on the given machine.