1. NAME

ntptime - read kernel time variables

2. SYNOPSIS

ntptime [ -chr ] [ -e est_error ] [ -f frequency ] [ -m max_error ] [ -o offset ] [ -s status ] [ -t time_constant ]

3. DESCRIPTION

This program is useful only with special kernels described in the A Kernel Model for Precision Timekeeping page. 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.

4. 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.