85 lines
2.7 KiB
Plaintext
85 lines
2.7 KiB
Plaintext
.Dd November 21 2016
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.Dt CALC_TICKADJ 1calc_tickadjmdoc User Commands
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.Os
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.\" EDIT THIS FILE WITH CAUTION (calc_tickadj-opts.mdoc)
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.\"
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.\" It has been AutoGen-ed November 21, 2016 at 07:58:36 AM by AutoGen 5.18.5
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.\" From the definitions calc_tickadj-opts.def
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.\" and the template file agmdoc-cmd.tpl
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.Sh NAME
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.Nm calc_tickadj
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.Nd Calculates "optimal" value for tick given ntp drift file.
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.Sh SYNOPSIS
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.Nm
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.\" Mixture of short (flag) options and long options
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.Op Fl flags
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.Op Fl flag Op Ar value
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.Op Fl \-option\-name Ns Oo Oo Ns "=| " Oc Ns Ar value Oc
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.Pp
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All arguments must be options.
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.Pp
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.Sh DESCRIPTION
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The \fBcalc_tickadj\fP script uses provided ntp drift file to generate optimal
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tick value. Generally, ntpd can do better job if the drift value is the
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smallest possible number.
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.sp
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The example output of
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.Bd -literal -offset indent
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$ ./calc_tickadj
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81.699 (drift)
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9999 usec; 9999779 nsec
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$ cat /etc/ntp/drift
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-23.159
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.Ed
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.sp
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means the following. If tick on that box is 10,000, by making the value 9999
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we'll shift the box from its current drift of \-23.159 to a drift of 81.699, and
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in doing so we'll speed the clock up a little every second instead of slowing
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the clock down a little.
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.sp
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If 'tick' on that box is 10,000,000 then by setting it to 9999779 the drift
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value will be somewhere around 0.0.
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.sp
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\fBcalc_tickadj\fP tries to determine the the tick value by using
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\fBtickadj\fP program from ntp package. If this doesn't work you can specify
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current tick manually on command line.
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.Sh "OPTIONS"
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.Bl -tag
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.It Fl d Ar string , Fl \-drift\-file Ns = Ns Ar string
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Ntp drift file to use.
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The default
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.Ar string
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for this option is:
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.ti +4
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/etc/ntp/drift
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.sp
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Use the specified drift file for calculations
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.It Fl t Ar number , Fl \-tick Ns = Ns Ar number
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Tick value of this host.
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This option takes an integer number as its argument.
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.sp
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The current tick which to adjustment will be calculated
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.It Fl \&? , Fl \-help
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Display usage information and exit.
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.It Fl \&! , Fl \-more\-help
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Pass the extended usage information through a pager.
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.It Fl v Op Brq Ar v|c|n Fl \-version Op Brq Ar v|c|n
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Output version of program and exit. The default mode is `v', a simple
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version. The `c' mode will print copyright information and `n' will
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print the full copyright notice.
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.El
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.Sh "EXIT STATUS"
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One of the following exit values will be returned:
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.Bl -tag
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.It 0 " (EXIT_SUCCESS)"
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Successful program execution.
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.It 1 " (EXIT_FAILURE)"
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The operation failed or the command syntax was not valid.
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.It 70 " (EX_SOFTWARE)"
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libopts had an internal operational error. Please report
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it to autogen\-users@lists.sourceforge.net. Thank you.
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.El
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.Sh "NOTES"
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This manual page was \fIAutoGen\fP\-erated from the \fBcalc_tickadj\fP
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option definitions.
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