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+<HTML>
+<HEAD>
+ <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
+ <META NAME="GENERATOR" CONTENT="Mozilla/4.01 [en] (Win95; I) [Netscape]">
+ <TITLE>ntptime - read kernel time variables
+</TITLE>
+</HEAD>
+<BODY>
+
+<H3>
+<TT>ntptime</TT> - read kernel time variables</H3>
+
+<HR>
+<H4>
+Synopsis</H4>
+<TT>ntptime [ -chr ] [ -e <I>est_error</I> ] [ -f <I>frequency</I> ] [
+-m <I>max_error</I> ] [ -o <I>offset</I> ] [ -s <I>status</I> ] [ -t <I>time_constant</I>
+]</TT>
+<H4>
+Description</H4>
+This program is useful only with special kernels described in the <A HREF="kern.htm">A
+Kernel Model for Precision Timekeeping </A>page. It reads and displays
+time-related kernel variables using the <TT>ntp_gettime()</TT> system call.
+A similar display can be obtained using the <TT>ntpdc</TT> program and
+<TT>kerninfo</TT> command.
+<H4>
+Options</H4>
+
+<DL>
+<DT>
+<TT>-c</TT></DT>
+
+<DD>
+Display the execution time of <TT>ntptime</TT> itself.</DD>
+
+<DT>
+<TT>-e <I>est_error</I></TT></DT>
+
+<DD>
+Specify estimated error, in microseconds.</DD>
+
+<DT>
+<TT>-f <I>frequency</I></TT></DT>
+
+<DD>
+Specify frequency offset, in parts per million.</DD>
+
+<DT>
+<TT>-h</TT></DT>
+
+<DD>
+Display times in Unix timeval format. Default is NTP format.</DD>
+
+<DT>
+<TT>-l</TT></DT>
+
+<DD>
+Specify the leap bits as a code from 0 to 3.</DD>
+
+<DT>
+<TT>-m <I>max_error</I></TT></DT>
+
+<DD>
+Display help information.</DD>
+
+<DT>
+<TT>-o <I>offset</I></TT></DT>
+
+<DD>
+Specify clock offset, in microseconds.</DD>
+
+<DT>
+<TT>-r</TT></DT>
+
+<DD>
+Display Unix and NTP times in raw format.</DD>
+
+<DT>
+<TT>-s <I>status</I></TT></DT>
+
+<DD>
+Specify clock status. Better know what you are doing.</DD>
+
+<DT>
+<TT>-t <I>time_constant</I></TT></DT>
+
+<DD>
+Specify time constant, an integer in the range 0-4.</DD>
+</DL>
+
+<HR>
+<ADDRESS>
+David L. Mills (mills@udel.edu)</ADDRESS>
+
+</BODY>
+</HTML>
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