ntptime - read and set kernel time variables
Last update: May 4, 2022 17:05 UTC (dbea9b7d4)
from Pogo, Walt Kelly
The turtle has been swimming in the kernel.
Table of Contents
Synopsis
ntptime [ -chr ] [ -e est_error ] [ -f frequency ] [ -m max_error ] [ -o offset ] [ -s status ] [ -t time_constant]
Description
This program is useful only with special kernels described in A Kernel Model for Precision Timekeeping. It reads and displays time-related kernel variables using the ntp_gettime() system call. A similar display can be obtained using the ntpdc program and kerninfo command.
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.
-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.