[ntp:questions] 500ppm - is it too small?

Unruh unruh-spam at physics.ubc.ca
Fri Nov 13 00:37:43 UTC 2009


David Woolley <david at ex.djwhome.demon.invalid> writes:

>Unruh wrote:

>> 
>> The problem is that Mills hardcoded this into the kernel routines for

>It, and lower values, e.g. 100ppm where hardcoded into kernels before 
>nptd was a factor.  The interface that ntpd uses in user space mode 
>typically had this sort of limit.

I believe Mills was largely responsible for the kernel time routine
(like adjtimex) 
ntp has been around for about 20 years now, longer than Linux has. 




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