timetrim man page on IRIX

timetrim man page on IRIX

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timetrim(1m)							  timetrim(1m)

NAME
     timetrim: get/set kernel SGI timetrim kernel parameter

SYNOPSIS
     To get current timetrim value:
	  timetrim
     To set timetrim value:
	  timetrim [-n] [[-i] value]

DESCRIPTION
     timetrim allows setting and adjustment of the system clock frequency trim
     parameter on Silicon Graphics machines.  The trim value native units are
     nanoseconds per second (10**-9), so a trim value of 1 makes the system
     clock step ahead 1 nanosecond more per second than a value of zero.
     Xntpd currently uses units of 2**-20 secs for its frequency offset
     (drift) values; to convert to a timetrim value, multiply by 1E9 / 2**20
     (about 954).

     timetrim with no arguments just prints out the current kernel value.
     With a numeric argument, the kernel value is set to the supplied value.
     The "-i" flag causes the supplied value to be added to the kernel value.
     The "-n" option causes all input and output to be in xntpd units rather
     than timetrim native units.

SEE ALSO
     ntpd(1m)

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