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from Pogo, Walt Kelly
The turtle has been swimming in the kernel. |
1. Manual Pages
2. Table of Contents
3. Synopsis
ntptime [-chr] [-e est_error] [-f frequency] [-j] [-m max_error] [-o offset] [-s status] [-t time_constant]
4. Description
Checks the kernel configuration for the NTP user interface syscalls ntp_gettime() and ntp_adjtime(). If present, the current timekeeping data are displayed. If not, a disappointment is displayed. See the kernel page file in the HTML documentation in distribution for further details.
A similar display can be obtained using the ntpq program and kerninfo command.
This program is useful only with kernels featuring the ntp_adjtime(2) system call or local equivalent, as described in the A Kernel Model for Precision Timekeeping page,
5. Options
- -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.
- -j
-
Report in JSON rather than plain text.
- -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
-
Specify clock status. Better know what you are doing.
- -t time_constant
-
Specify time constant, an integer in the range 0-10.
- -V
-
Print the version string and exit.