1338531Sdelphij.Dd August 14 2018 2275970Scy.Dt CALC_TICKADJ 1calc_tickadjmdoc User Commands 3275970Scy.Os 4275970Scy.\" EDIT THIS FILE WITH CAUTION (calc_tickadj-opts.mdoc) 5275970Scy.\" 6338531Sdelphij.\" It has been AutoGen-ed August 14, 2018 at 08:08:56 AM by AutoGen 5.18.5 7275970Scy.\" From the definitions calc_tickadj-opts.def 8275970Scy.\" and the template file agmdoc-cmd.tpl 9275970Scy.Sh NAME 10275970Scy.Nm calc_tickadj 11275970Scy.Nd Calculates "optimal" value for tick given ntp drift file. 12275970Scy.Sh SYNOPSIS 13275970Scy.Nm 14275970Scy.\" Mixture of short (flag) options and long options 15275970Scy.Op Fl flags 16275970Scy.Op Fl flag Op Ar value 17275970Scy.Op Fl \-option\-name Ns Oo Oo Ns "=| " Oc Ns Ar value Oc 18275970Scy.Pp 19275970ScyAll arguments must be options. 20275970Scy.Pp 21275970Scy.Sh DESCRIPTION 22275970ScyThe \fBcalc_tickadj\fP script uses provided ntp drift file to generate optimal 23275970Scytick value. Generally, ntpd can do better job if the drift value is the 24275970Scysmallest possible number. 25275970Scy.sp 26275970ScyThe example output of 27275970Scy.Bd -literal -offset indent 28275970Scy$ ./calc_tickadj 29275970Scy81.699 (drift) 30275970Scy9999 usec; 9999779 nsec 31275970Scy$ cat /etc/ntp/drift 32275970Scy-23.159 33275970Scy.Ed 34275970Scy.sp 35275970Scymeans the following. If tick on that box is 10,000, by making the value 9999 36275970Scywe'll shift the box from its current drift of \-23.159 to a drift of 81.699, and 37275970Scyin doing so we'll speed the clock up a little every second instead of slowing 38275970Scythe clock down a little. 39275970Scy.sp 40275970ScyIf 'tick' on that box is 10,000,000 then by setting it to 9999779 the drift 41275970Scyvalue will be somewhere around 0.0. 42275970Scy.sp 43275970Scy\fBcalc_tickadj\fP tries to determine the the tick value by using 44275970Scy\fBtickadj\fP program from ntp package. If this doesn't work you can specify 45275970Scycurrent tick manually on command line. 46275970Scy.Sh "OPTIONS" 47275970Scy.Bl -tag 48275970Scy.It Fl d Ar string , Fl \-drift\-file Ns = Ns Ar string 49275970ScyNtp drift file to use. 50275970ScyThe default 51275970Scy.Ar string 52275970Scyfor this option is: 53275970Scy.ti +4 54275970Scy /etc/ntp/drift 55275970Scy.sp 56275970ScyUse the specified drift file for calculations 57275970Scy.It Fl t Ar number , Fl \-tick Ns = Ns Ar number 58275970ScyTick value of this host. 59275970ScyThis option takes an integer number as its argument. 60275970Scy.sp 61275970ScyThe current tick which to adjustment will be calculated 62275970Scy.It Fl \&? , Fl \-help 63275970ScyDisplay usage information and exit. 64275970Scy.It Fl \&! , Fl \-more\-help 65275970ScyPass the extended usage information through a pager. 66275970Scy.It Fl v Op Brq Ar v|c|n Fl \-version Op Brq Ar v|c|n 67275970ScyOutput version of program and exit. The default mode is `v', a simple 68275970Scyversion. The `c' mode will print copyright information and `n' will 69275970Scyprint the full copyright notice. 70275970Scy.El 71275970Scy.Sh "EXIT STATUS" 72275970ScyOne of the following exit values will be returned: 73275970Scy.Bl -tag 74275970Scy.It 0 " (EXIT_SUCCESS)" 75275970ScySuccessful program execution. 76275970Scy.It 1 " (EXIT_FAILURE)" 77275970ScyThe operation failed or the command syntax was not valid. 78275970Scy.It 70 " (EX_SOFTWARE)" 79275970Scylibopts had an internal operational error. Please report 80275970Scyit to autogen\-users@lists.sourceforge.net. Thank you. 81275970Scy.El 82275970Scy.Sh "NOTES" 83275970ScyThis manual page was \fIAutoGen\fP\-erated from the \fBcalc_tickadj\fP 84275970Scyoption definitions. 85