CALC_TICKADJ(1calc_tickadjmdoc) User CALC_TICKADJ(1calc_tickadjmdoc)
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. Gener-
ally, 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 pack-
age. 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 no-
tice.
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 auto-
gen-users AT lists.net. Thank you.
NOTES
This manual page was AutoGen-erated from the calc_tickadj option definitions.
BSD June 23 2020 BSD
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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