1 .de1 NOP 2 . it 1 an-trap 3 . if \\n[.$] \,\\$*\/ 4 .. 5 .ie t \ 6 .ds B-Font [CB] 7 .ds I-Font [CI] 8 .ds R-Font [CR] 9 .el \ 10 .ds B-Font B 11 .ds I-Font I 12 .ds R-Font R 13 .TH calc_tickadj 1calc_tickadjman "25 May 2024" "ntp (4.2.8p18)" "User Commands" 14 .\" 15 .\" EDIT THIS FILE WITH CAUTION (in-mem file) 16 .\" 17 .\" It has been AutoGen-ed May 25, 2024 at 12:05:32 AM by AutoGen 5.18.16 18 .\" From the definitions calc_tickadj-opts.def 19 .\" and the template file agman-cmd.tpl 20 .SH NAME 21 \f\*[B-Font]calc_tickadj\fP 22 \- Calculates optimal value for tick given ntp drift file. 23 .SH SYNOPSIS 24 \f\*[B-Font]calc_tickadj\fP 25 .\" Mixture of short (flag) options and long options 26 [\f\*[B-Font]\-flags\f[]] 27 [\f\*[B-Font]\-flag\f[] [\f\*[I-Font]value\f[]]] 28 [\f\*[B-Font]\-\-option-name\f[][[=| ]\f\*[I-Font]value\f[]]] 29 .sp \n(Ppu 30 .ne 2 31 32 All arguments must be options. 33 .sp \n(Ppu 34 .ne 2 35 36 .SH DESCRIPTION 37 The \fBcalc_tickadj\fP script uses provided ntp drift file to generate optimal 38 tick value. Generally, ntpd can do better job if the drift value is the 39 smallest possible number. 40 .sp 41 The example output of 42 .br 43 .in +4 44 .nf 45 $ ./calc_tickadj 46 81.699 (drift) 47 9999 usec; 9999779 nsec 48 $ cat /etc/ntp/drift 49 -23.159 50 .in -4 51 .fi 52 .sp 53 means the following. If tick on that box is 10,000, by making the value 9999 54 we'll shift the box from its current drift of \-23.159 to a drift of 81.699, and 55 in doing so we'll speed the clock up a little every second instead of slowing 56 the clock down a little. 57 .sp 58 If 'tick' on that box is 10,000,000 then by setting it to 9999779 the drift 59 value will be somewhere around 0.0. 60 .sp 61 \fBcalc_tickadj\fP tries to determine the the tick value by using 62 \fBtickadj\fP program from ntp package. If this doesn't work you can specify 63 current tick manually on command line. 64 .SH "OPTIONS" 65 .TP 66 .NOP \f\*[B-Font]\-d\f[] \f\*[I-Font]string\f[], \f\*[B-Font]\-\-drift\-file\f[]=\f\*[I-Font]string\f[] 67 Ntp drift file to use. 68 The default 69 \f\*[I-Font]string\f[] 70 for this option is: 71 .ti +4 72 /etc/ntp/drift 73 .sp 74 Use the specified drift file for calculations 75 .TP 76 .NOP \f\*[B-Font]\-t\f[] \f\*[I-Font]number\f[], \f\*[B-Font]\-\-tick\f[]=\f\*[I-Font]number\f[] 77 Tick value of this host. 78 This option takes an integer number as its argument. 79 .sp 80 The current tick which to adjustment will be calculated 81 .TP 82 .NOP \f\*[B-Font]\-\&?\f[], \f\*[B-Font]\-\-help\f[] 83 Display usage information and exit. 84 .TP 85 .NOP \f\*[B-Font]\-\&!\f[], \f\*[B-Font]\-\-more-help\f[] 86 Pass the extended usage information through a pager. 87 .TP 88 .NOP \f\*[B-Font]\-v\f[] [{\f\*[I-Font]v|c|n\f[] \f\*[B-Font]\-\-version\f[] [{\f\*[I-Font]v|c|n\f[]}]}] 89 Output version of program and exit. The default mode is `v', a simple 90 version. The `c' mode will print copyright information and `n' will 91 print the full copyright notice. 92 .PP 93 .SH "EXIT STATUS" 94 One of the following exit values will be returned: 95 .TP 96 .NOP 0 " (EXIT_SUCCESS)" 97 Successful program execution. 98 .TP 99 .NOP 1 " (EXIT_FAILURE)" 100 The operation failed or the command syntax was not valid. 101 .TP 102 .NOP 70 " (EX_SOFTWARE)" 103 libopts had an internal operational error. Please report 104 it to autogen-users (a] lists.sourceforge.net. Thank you. 105 .PP 106 .SH "NOTES" 107 This manual page was \fIAutoGen\fP-erated from the \fBcalc_tickadj\fP 108 option definitions. 109
Indexes created Sun Aug 23 00:25:02 UTC 2026