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OPTISA(1)							     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 specified 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	 isal‐
       ist(5).

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  instruc‐
	    tion_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 deter‐
       mining which of several binary versions of a given program   should  be
       used on the given machine.

				 Jul 25, 1997			     OPTISA(1)

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