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Dd March 29, 2000
Dt NTPTIME 8
Os
Sh NAME
Nm ntptime
Nd read kernel time variables
Sh SYNOPSIS
Nm
Op Fl chr
Op Fl e Ar est_error
Op Fl f Ar frequency
Op Fl m Ar max_error
Op Fl o Ar offset
Op Fl s Ar status
Op Fl t Ar time_constant
Sh DESCRIPTION
This program is useful only with special kernels described in the
%T "A Kernel Model for Precision Timekeeping"
page in
Pa /usr/share/doc/html/ntp/kern.html .
It reads and displays
time-related kernel variables using the
Xr ntp_gettime 2
system call.
A similar display can be obtained using the
Nm ntpdc
program and
Pa kerninfo
command.
Sh OPTIONS
Bl -tag -width indent
It Fl c
Display the execution time of
Nm
itself.
It Fl e Ar est_error
Specify estimated error, in microseconds.
It Fl f Ar frequency
Specify frequency offset, in parts per million.
It Fl h
Display times in Unix timeval format. Default is NTP format.
It Fl l
Specify the leap bits as a code from 0 to 3.
It Fl m Ar max_error
Display help information.
It Fl o Ar offset
Specify clock offset, in microseconds.
It Fl r
Display Unix and NTP times in raw format.
It Fl s Ar status
Specify clock status. Better know what you are doing.
It Fl t Ar time_constant
Specify time constant, an integer in the range 0-4.
El
Sh AUTHORS
David L. Mills ([email protected])

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