1.Dd June 6 2023 2.Dt CALC_TICKADJ 1calc_tickadjmdoc User Commands 3.Os 4.\" EDIT THIS FILE WITH CAUTION (calc_tickadj-opts.mdoc) 5.\" 6.\" It has been AutoGen-ed June 6, 2023 at 04:39:12 AM by AutoGen 5.18.16 7.\" From the definitions calc_tickadj-opts.def 8.\" and the template file agmdoc-cmd.tpl 9.Sh NAME 10.Nm calc_tickadj 11.Nd Calculates "optimal" value for tick given ntp drift file. 12.Sh SYNOPSIS 13.Nm 14.\" Mixture of short (flag) options and long options 15.Op Fl flags 16.Op Fl flag Op Ar value 17.Op Fl \-option\-name Ns Oo Oo Ns "=| " Oc Ns Ar value Oc 18.Pp 19All arguments must be options. 20.Pp 21.Sh DESCRIPTION 22The \fBcalc_tickadj\fP script uses provided ntp drift file to generate optimal 23tick value. Generally, ntpd can do better job if the drift value is the 24smallest possible number. 25.sp 26The example output of 27.Bd -literal -offset indent 28$ ./calc_tickadj 2981.699 (drift) 309999 usec; 9999779 nsec 31$ cat /etc/ntp/drift 32-23.159 33.Ed 34.sp 35means the following. If tick on that box is 10,000, by making the value 9999 36we'll shift the box from its current drift of \-23.159 to a drift of 81.699, and 37in doing so we'll speed the clock up a little every second instead of slowing 38the clock down a little. 39.sp 40If 'tick' on that box is 10,000,000 then by setting it to 9999779 the drift 41value will be somewhere around 0.0. 42.sp 43\fBcalc_tickadj\fP tries to determine the the tick value by using 44\fBtickadj\fP program from ntp package. If this doesn't work you can specify 45current tick manually on command line. 46.Sh "OPTIONS" 47.Bl -tag 48.It Fl d Ar string , Fl \-drift\-file Ns = Ns Ar string 49Ntp drift file to use. 50The default 51.Ar string 52for this option is: 53.ti +4 54 /etc/ntp/drift 55.sp 56Use the specified drift file for calculations 57.It Fl t Ar number , Fl \-tick Ns = Ns Ar number 58Tick value of this host. 59This option takes an integer number as its argument. 60.sp 61The current tick which to adjustment will be calculated 62.It Fl \&? , Fl \-help 63Display usage information and exit. 64.It Fl \&! , Fl \-more\-help 65Pass the extended usage information through a pager. 66.It Fl v Op Brq Ar v|c|n Fl \-version Op Brq Ar v|c|n 67Output version of program and exit. The default mode is `v', a simple 68version. The `c' mode will print copyright information and `n' will 69print the full copyright notice. 70.El 71.Sh "EXIT STATUS" 72One of the following exit values will be returned: 73.Bl -tag 74.It 0 " (EXIT_SUCCESS)" 75Successful program execution. 76.It 1 " (EXIT_FAILURE)" 77The operation failed or the command syntax was not valid. 78.It 70 " (EX_SOFTWARE)" 79libopts had an internal operational error. Please report 80it to autogen\-users@lists.sourceforge.net. Thank you. 81.El 82.Sh "NOTES" 83This manual page was \fIAutoGen\fP\-erated from the \fBcalc_tickadj\fP 84option definitions. 85