1344884Scy<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2344884Scy<html> 3344884Scy<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ --> 4275970Scy<head> 5344884Scy<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 6344884Scy<title>calc_tickadj User’s Manual</title> 7344884Scy 8344884Scy<meta name="description" content="calc_tickadj User’s Manual"> 9344884Scy<meta name="keywords" content="calc_tickadj User’s Manual"> 10344884Scy<meta name="resource-type" content="document"> 11344884Scy<meta name="distribution" content="global"> 12344884Scy<meta name="Generator" content="makeinfo"> 13344884Scy<link href="#Top" rel="start" title="Top"> 14344884Scy<link href="dir.html#Top" rel="up" title="(dir)"> 15344884Scy<style type="text/css"> 16344884Scy<!-- 17344884Scya.summary-letter {text-decoration: none} 18344884Scyblockquote.indentedblock {margin-right: 0em} 19344884Scyblockquote.smallindentedblock {margin-right: 0em; font-size: smaller} 20344884Scyblockquote.smallquotation {font-size: smaller} 21344884Scydiv.display {margin-left: 3.2em} 22344884Scydiv.example {margin-left: 3.2em} 23344884Scydiv.lisp {margin-left: 3.2em} 24344884Scydiv.smalldisplay {margin-left: 3.2em} 25344884Scydiv.smallexample {margin-left: 3.2em} 26344884Scydiv.smalllisp {margin-left: 3.2em} 27344884Scykbd {font-style: oblique} 28344884Scypre.display {font-family: inherit} 29344884Scypre.format {font-family: inherit} 30344884Scypre.menu-comment {font-family: serif} 31344884Scypre.menu-preformatted {font-family: serif} 32344884Scypre.smalldisplay {font-family: inherit; font-size: smaller} 33344884Scypre.smallexample {font-size: smaller} 34344884Scypre.smallformat {font-family: inherit; font-size: smaller} 35344884Scypre.smalllisp {font-size: smaller} 36344884Scyspan.nolinebreak {white-space: nowrap} 37344884Scyspan.roman {font-family: initial; font-weight: normal} 38344884Scyspan.sansserif {font-family: sans-serif; font-weight: normal} 39344884Scyul.no-bullet {list-style: none} 40344884Scy--> 41344884Scy</style> 42344884Scy 43344884Scy 44275970Scy</head> 45275970Scy 46344884Scy<body lang="en"> 47344884Scy<h1 class="settitle" align="center">calc_tickadj User’s Manual</h1> 48275970Scy 49275970Scy 50344884Scy 51344884Scy 52344884Scy<a name="Top"></a> 53344884Scy<div class="header"> 54344884Scy<p> 55344884ScyPrevious: <a href="dir.html#Top" accesskey="p" rel="prev">(dir)</a>, Up: <a href="dir.html#Top" accesskey="u" rel="up">(dir)</a> </p> 56275970Scy</div> 57344884Scy<a name="calc_005ftickadj-User_0027s-Manual"></a> 58344884Scy<h1 class="top">calc_tickadj User’s Manual</h1> 59275970Scy 60344884Scy<p>This document describes the use of the NTP Project’s <code>calc_tickadj</code> program. 61362716ScyThis document applies to version 4.2.8p15 of <code>calc_tickadj</code>. 62344884Scy</p> 63344884Scy<a name="SEC_Overview"></a> 64344884Scy<h2 class="shortcontents-heading">Short Table of Contents</h2> 65344884Scy 66344884Scy<div class="shortcontents"> 67344884Scy<ul class="no-bullet"> 68344884Scy<li><a name="stoc-Invoking-calc_005ftickadj" href="#toc-Invoking-calc_005ftickadj">1 Invoking calc_tickadj</a></li> 69275970Scy</ul> 70344884Scy</div> 71275970Scy 72344884Scy 73344884Scy<table class="menu" border="0" cellspacing="0"> 74344884Scy<tr><td align="left" valign="top">• calc_tickadj Description:</td><td> </td><td align="left" valign="top">Description 75344884Scy</td></tr> 76344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-Invocation" accesskey="2">calc_tickadj Invocation</a>:</td><td> </td><td align="left" valign="top">Invoking calc_tickadj 77344884Scy</td></tr> 78344884Scy</table> 79344884Scy 80344884Scy<hr> 81344884Scy<a name="calc_005ftickadj-Invocation"></a> 82344884Scy<div class="header"> 83344884Scy<p> 84344884ScyUp: <a href="#Top" accesskey="u" rel="up">Top</a> </p> 85275970Scy</div> 86344884Scy<a name="Invoking-calc_005ftickadj"></a> 87344884Scy<h2 class="chapter">1 Invoking calc_tickadj</h2> 88344884Scy<a name="index-calc_005ftickadj"></a> 89344884Scy<a name="index-Calculates-_0022optimal_0022-value-for-tick-given-ntp-drift-file_002e"></a> 90275970Scy 91344884Scy<p>The <code>calc_tickadj</code> script uses provided ntp drift file to generate optimal 92275970Scytick value. Generally, ntpd can do better job if the drift value is the 93344884Scysmallest possible number. 94344884Scy</p> 95344884Scy<p>The example output of 96344884Scy</p><div class="example"> 97344884Scy<pre class="example">$ ./calc_tickadj 98344884Scy81.699 (drift) 99344884Scy9999 usec; 9999779 nsec 100344884Scy$ cat /etc/ntp/drift 101344884Scy-23.159 102344884Scy</pre></div> 103275970Scy 104344884Scy<p>means the following. If tick on that box is 10,000, by making the value 9999 105344884Scywe’ll shift the box from its current drift of -23.159 to a drift of 81.699, and 106344884Scyin doing so we’ll speed the clock up a little every second instead of slowing 107275970Scythe clock down a little. 108344884Scy</p> 109344884Scy<p>If ’tick’ on that box is 10,000,000 then by setting it to 9999779 the drift 110275970Scyvalue will be somewhere around 0.0. 111344884Scy</p> 112344884Scy<p><code>calc_tickadj</code> tries to determine the the tick value by using 113344884Scy<code>tickadj</code> program from ntp package. If this doesn’t work you can specify 114275970Scycurrent tick manually on command line. 115344884Scy</p> 116275970Scy 117344884Scy<p>This section was generated by <strong>AutoGen</strong>, 118275970Scyusing the <code>agtexi-cmd</code> template and the option descriptions for the <code>calc_tickadj</code> program. 119344884Scy</p> 120344884Scy<table class="menu" border="0" cellspacing="0"> 121344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-usage" accesskey="1">calc_tickadj usage</a>:</td><td> </td><td align="left" valign="top">calc_tickadj help/usage (<samp>--help</samp>) 122344884Scy</td></tr> 123344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-drift_002dfile" accesskey="2">calc_tickadj drift-file</a>:</td><td> </td><td align="left" valign="top">drift-file option (-d) 124344884Scy</td></tr> 125344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-tick" accesskey="3">calc_tickadj tick</a>:</td><td> </td><td align="left" valign="top">tick option (-t) 126344884Scy</td></tr> 127344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-exit-status" accesskey="4">calc_tickadj exit status</a>:</td><td> </td><td align="left" valign="top">exit status 128344884Scy</td></tr> 129344884Scy</table> 130275970Scy 131344884Scy<hr> 132344884Scy<a name="calc_005ftickadj-usage"></a> 133344884Scy<div class="header"> 134344884Scy<p> 135344884ScyNext: <a href="#calc_005ftickadj-drift_002dfile" accesskey="n" rel="next">calc_tickadj drift-file</a>, Up: <a href="#calc_005ftickadj-Invocation" accesskey="u" rel="up">calc_tickadj Invocation</a> </p> 136275970Scy</div> 137344884Scy<a name="calc_005ftickadj-help_002fusage-_0028_002d_002dhelp_0029"></a> 138344884Scy<h3 class="section">1.1 calc_tickadj help/usage (<samp>--help</samp>)</h3> 139344884Scy<a name="index-calc_005ftickadj-help"></a> 140275970Scy 141344884Scy<p>This is the automatically generated usage text for calc_tickadj. 142344884Scy</p> 143344884Scy<p>The text printed is the same whether selected with the <code>help</code> option 144344884Scy(<samp>--help</samp>) or the <code>more-help</code> option (<samp>--more-help</samp>). <code>more-help</code> will print 145344884Scythe usage text by passing it through a pager program. 146275970Scy<code>more-help</code> is disabled on platforms without a working 147275970Scy<code>fork(2)</code> function. The <code>PAGER</code> environment variable is 148344884Scyused to select the program, defaulting to <samp>more</samp>. Both will exit 149275970Scywith a status code of 0. 150344884Scy</p> 151344884Scy<div class="example"> 152358659Scy<pre class="example">calc_tickadj - Calculates "optimal" value for tick given ntp drift file. - Ver. 4.2.8p13 153344884ScyUSAGE: calc_tickadj [ -<flag> [<val>] | --<name>[{=| }<val>] ]... 154275970Scy 155275970Scy -d, --drift-file=str Ntp drift file to use 156275970Scy -t, --tick=num Tick value of this host 157275970Scy -?, --help Display usage information and exit 158275970Scy --more-help Pass the extended usage text through a pager 159275970Scy 160275970ScyOptions are specified by doubled hyphens and their name or by a single 161275970Scyhyphen and the flag character. 162344884Scy</pre></div> 163344884Scy 164344884Scy<table class="menu" border="0" cellspacing="0"> 165344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-drift_002dfile" accesskey="1">calc_tickadj drift-file</a>:</td><td> </td><td align="left" valign="top"> 166344884Scy</td></tr> 167344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-tick" accesskey="2">calc_tickadj tick</a>:</td><td> </td><td align="left" valign="top"> 168344884Scy</td></tr> 169344884Scy<tr><td align="left" valign="top">• <a href="#calc_005ftickadj-exit-status" accesskey="3">calc_tickadj exit status</a>:</td><td> </td><td align="left" valign="top"> 170344884Scy</td></tr> 171344884Scy</table> 172344884Scy 173344884Scy<hr> 174344884Scy<a name="calc_005ftickadj-drift_002dfile"></a> 175344884Scy<div class="header"> 176344884Scy<p> 177344884ScyNext: <a href="#calc_005ftickadj-tick" accesskey="n" rel="next">calc_tickadj tick</a>, Previous: <a href="#calc_005ftickadj-usage" accesskey="p" rel="prev">calc_tickadj usage</a>, Up: <a href="#calc_005ftickadj-usage" accesskey="u" rel="up">calc_tickadj usage</a> </p> 178275970Scy</div> 179344884Scy<a name="drift_002dfile-option-_0028_002dd_0029"></a> 180344884Scy<h4 class="subsection">1.1.1 drift-file option (-d)</h4> 181344884Scy<a name="index-calc_005ftickadj_002ddrift_002dfile"></a> 182275970Scy 183344884Scy<p>This is the “ntp drift file to use” option. 184344884ScyThis option takes a string argument. 185275970ScyUse the specified drift file for calculations 186344884Scy</p><hr> 187344884Scy<a name="calc_005ftickadj-tick"></a> 188344884Scy<div class="header"> 189344884Scy<p> 190344884ScyNext: <a href="#calc_005ftickadj-exit-status" accesskey="n" rel="next">calc_tickadj exit status</a>, Previous: <a href="#calc_005ftickadj-drift_002dfile" accesskey="p" rel="prev">calc_tickadj drift-file</a>, Up: <a href="#calc_005ftickadj-usage" accesskey="u" rel="up">calc_tickadj usage</a> </p> 191275970Scy</div> 192344884Scy<a name="tick-option-_0028_002dt_0029"></a> 193344884Scy<h4 class="subsection">1.1.2 tick option (-t)</h4> 194344884Scy<a name="index-calc_005ftickadj_002dtick"></a> 195275970Scy 196344884Scy<p>This is the “tick value of this host” option. 197344884ScyThis option takes a number argument. 198275970ScyThe current tick which to adjustment will be calculated 199344884Scy</p><hr> 200344884Scy<a name="calc_005ftickadj-exit-status"></a> 201344884Scy<div class="header"> 202344884Scy<p> 203344884ScyPrevious: <a href="#calc_005ftickadj-tick" accesskey="p" rel="prev">calc_tickadj tick</a>, Up: <a href="#calc_005ftickadj-usage" accesskey="u" rel="up">calc_tickadj usage</a> </p> 204275970Scy</div> 205344884Scy<a name="calc_005ftickadj-exit-status-1"></a> 206344884Scy<h4 class="subsection">1.1.3 calc_tickadj exit status</h4> 207275970Scy 208275970Scy<p>One of the following exit values will be returned: 209344884Scy</p><dl compact="compact"> 210344884Scy<dt>‘<samp>0 (EXIT_SUCCESS)</samp>’</dt> 211344884Scy<dd><p>Successful program execution. 212344884Scy</p></dd> 213344884Scy<dt>‘<samp>1 (EXIT_FAILURE)</samp>’</dt> 214344884Scy<dd><p>The operation failed or the command syntax was not valid. 215344884Scy</p></dd> 216275970Scy</dl> 217344884Scy<hr> 218275970Scy 219275970Scy 220344884Scy 221344884Scy</body> 222344884Scy</html> 223