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optisa(1)			 User Commands			     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).

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      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 deter‐
       mining which of several binary versions of a given program   should  be
       used on the given machine.

SunOS 5.10			  25 Jul 1997			     optisa(1)

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