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ntp 4.2.6p5

    1: README file for directory ./util of the NTP Version 4 distribution
    2: 
    3: This directory contains the sources for the various utility programs.
    4: See the README and RELNOTES files in the parent directory for directions
    5: on how to make and install these programs.
    6: 
    7: The ntptime.c program checks the kernel configuration for the NTP user
    8: interface syscalls ntp_gettime() and ntp_adjtime().  If present, the
    9: current timekeeping data are displayed.  If not, a dissapointment is
   10: displayed.  See the kernel page file in the HTML documentation in
   11: distribution for further details. ntptime will be built be if configure
   12: believes your system can use it.
   13: 
   14: The jitter.c program can be used to determine the timing jitter due to
   15: the operating system in a gettimeofday() call.  For most systems the
   16: dominant contribution to the jitter budget is the period of the hardware
   17: interrupt, usually in the range 10 us-1 ms.  For those systems with
   18: microsecond counters, such as recent Sun and certain HP and DEC systems,
   19: the jitter is dominated only by the operating system.
   20: 
   21: The timetrim.c program can be used with SGI machines to implement a
   22: scheme to discipline the hardware clock frequency.  See the source code
   23: for further information.
   24: 
   25: The byteorder.c and longsize.c programs are used during the configuration
   26: process to determine the byte order (little or big endian) and longword
   27: size (32 or 64 bits).  See the configure scripts for further details.
   28: 
   29: The testrs6000.c program is used for testing purposes with the IBM
   30: RS/6000 AIX machines. Bill Jones <jones@chpc.utexas.edu> reports:
   31: "I could not get a tickadj of less than 40 us to work on a RS6000.
   32: If you set it less than 40 us do so at your own risk!"
   33: 
   34: The tickadj.c program can be used to read and set various kernel
   35: parameters affecting NTP operations. See the tickadj page in the HTML
   36: documentation for further details.  tickadj will be built if configure
   37: believes your system can use it.