The
ntptime
utility is useful only with special kernels
described in the
"
A Kernel Model for Precision Timekeeping
"
page
(available as part of the HTML documentation
provided in
/usr/share/doc/ntp).
It reads and displays time-related kernel variables
using the
gettime()
and
adjtime(2)
system calls if available.
A similar display can be obtained using the
ntpdc(8)
program's
kerninfo
command.
The following options are available:
|
| -c
|
| |
Display the execution time of
ntptime
itself.
|
| -e est_error
|
| |
Specify estimated error, in microseconds.
|
| -f frequency
|
| |
Specify frequency offset, in parts per million.
|
| -h
|
| |
Display help information.
|
| -m max_error
|
| |
Specify max possible errors, in microseconds.
|
| -o offset
|
| |
Specify clock offset, in microseconds.
|
| -r
|
| |
Display Unix and NTP times in raw format.
|
-s status
-t time_constant
|
| |
Specify time constant, an integer in the range 0-4.
|
|
