> I must say (as an NTP user) that I don't understand: why don't you just
> allow xntpd to use the RTC as a local clock and let xntpd slave ths system
> clock with it ?
The RTC has a precision of 1 second, if memory serves, even though it can
generate interrupts more rapidly. In order for the system to derive more
precision, it must do what hwclock(8) does - watch carefully for the transition
of the seconds digit, and set the kernel's fractional-seconds portion of the
time to zero. This is inherently costly to do. If memory also serves, the RTC
is a slow device - reading it may take a microsecond or more more per byte.
-- Kristofer Karas * kXtXk@bigfoot.com (delete X's) AMA/CCS DoD RF900RR HawkGT !car * Senior systems engineer/SysAdmin "Build a system that even a fool can use, * BI Deaconess Medical Center, Boston and only a fool will want to use it." * Will design LISP machines for food
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