60 lines
1.4 KiB
Groff
60 lines
1.4 KiB
Groff
.\" $NetBSD: ntptime.8,v 1.3 2000/07/23 14:34:14 simonb Exp $
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.\" Converted from HTML to mandoc by html-to-mdoc.pl
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.\"
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.Dd Mar 29, 2000
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.Dt NTPTIME 8
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.Os
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.Sh NAME
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.Nm ntptime
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.Nd read kernel time variables
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.Sh SYNOPSIS
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.Nm
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.Op Fl chr
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.Op Fl e Ar est_error
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.Op Fl f Ar frequency
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.Op Fl m Ar max_error
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.Op Fl o Ar offset
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.Op Fl s Ar status
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.Op Fl t Ar time_constant
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.Sh DESCRIPTION
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This program is useful only with special kernels described in the
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.%T "A Kernel Model for Precision Timekeeping"
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page in
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.Pa /usr/share/doc/html/ntp/kern.htm .
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It reads and displays
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time-related kernel variables using the
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.Pa ntp_gettime()
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system call.
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A similar display can be obtained using the
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.Nm ntpdc
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program and
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.Pa kerninfo
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command.
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.Sh OPTIONS
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.Bl -tag -width indent
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.It Fl c
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Display the execution time of
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.Nm
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itself.
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.It Fl e Ar est_error
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Specify estimated error, in microseconds.
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.It Fl f Ar frequency
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Specify frequency offset, in parts per million.
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.It Fl h
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Display times in Unix timeval format. Default is NTP format.
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.It Fl l
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Specify the leap bits as a code from 0 to 3.
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.It Fl m Ar max_error
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Display help information.
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.It Fl o Ar offset
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Specify clock offset, in microseconds.
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.It Fl r
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Display Unix and NTP times in raw format.
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.It Fl s Ar status
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Specify clock status. Better know what you are doing.
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.It Fl t Ar time_constant
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Specify time constant, an integer in the range 0-4.
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.El
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.Sh AUTHOR
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David L. Mills (mills@udel.edu)
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