calc_tickadj(1calc_tickadjman)	 User Commands	calc_tickadj(1calc_tickadjman)

NAME
       calc_tickadj - Calculates optimal value for tick given ntp drift file.

SYNOPSIS
       calc_tickadj [-flags] [-flag [value]] [--option-name[[=| ]value]]

       All arguments must be options.


DESCRIPTION
       The calc_tickadj script uses provided ntp drift file to generate
       optimal tick value. Generally, ntpd can do better job if the drift
       value is the smallest possible number.

       The example output of
	   $ ./calc_tickadj
	   81.699 (drift)
	   9999 usec; 9999779 nsec
	   $ cat /etc/ntp/drift
	   -23.159

       means the following. If tick on that box is 10,000, by making the value
       9999 we'll shift the box from its current drift of -23.159 to a drift
       of 81.699, and in doing so we'll speed the clock up a little every
       second instead of slowing the clock down a little.

       If 'tick' on that box is 10,000,000 then by setting it to 9999779 the
       drift value will be somewhere around 0.0.

       calc_tickadj tries to determine the the tick value by using tickadj
       program from ntp package. If this doesn't work you can specify current
       tick manually on command line.

OPTIONS
       -d string, --drift-file=string
	      Ntp drift file to use.  The default string for this option is:
		   /etc/ntp/drift

	      Use the specified drift file for calculations

       -t number, --tick=number
	      Tick value of this host.	This option takes an integer number as
	      its argument.

	      The current tick which to adjustment will be calculated

       -?, --help
	      Display usage information and exit.

       -!, --more-help
	      Pass the extended usage information through a pager.

       -v [{v|c|n --version [{v|c|n}]}]
	      Output version of program and exit.  The default mode is `v', a
	      simple version.  The `c' mode will print copyright information
	      and `n' will print the full copyright notice.

EXIT STATUS
       One of the following exit values will be returned:

       0  (EXIT_SUCCESS)
	      Successful program execution.

       1  (EXIT_FAILURE)
	      The operation failed or the command syntax was not valid.

       70  (EX_SOFTWARE)
	      libopts had an internal operational error.  Please report it to
	      autogen-users@lists.sourceforge.net.  Thank you.

NOTES
       This manual page was AutoGen-erated from the calc_tickadj option
       definitions.

ntp (4.2.8p18)			  25 May 2024	calc_tickadj(1calc_tickadjman)