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OpenSolaris 2009.06 - man page for optisa (opensolaris section 1)

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  instruc-
       tion  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 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 determining which of sev-
       eral binary versions of a given program	should be used on the given machine.

SunOS 5.11				   25 Jul 1997					optisa(1)


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