6d8a85eb29
Those pages which have not been transcribed are referenced as gracefully as possible. There is no perfect section for the ntp_* files, which document configuration options for the NTP suite, so I'm putting them in the same section as the pages for the utilities themselves.
69 lines
1.4 KiB
Groff
69 lines
1.4 KiB
Groff
.\"
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.\" $FreeBSD$
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.\"
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.Dd January 7, 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 ntptime
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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
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described in the
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.Qo
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A Kernel Model for Precision Timekeeping
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.Qc
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page
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(available as part of the HTML documentation
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provided in
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.Pa /usr/share/doc/ntp ) .
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It reads and displays time-related kernel variables
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using the
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.Xr ntp_gettime 2
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and
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.Xr ntp_adjtime 2
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system calls if available.
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A similar display can be obtained using the
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.Xr ntpdc 8
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program's
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.Ic kerninfo
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command.
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The following options are available:
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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.
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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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.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 SEE ALSO
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.Xr ntp_adjtime 2 ,
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.Xr ntp_gettime 2 ,
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.Xr ntpdc 8
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