[ntp:questions] Time slew doesn't seem to work
unruh-spam at physics.ubc.ca
Sat Apr 12 05:43:40 UTC 2008
hal-usenet at ip-64-139-1-69.sjc.megapath.net (Hal Murray) writes:
>>OK, so there was no magic in that 500PPM limit. Is there a difference
>>between the tick size adjustment and the frequency adjustment
>>(CPU-counter-to-time conversion factor).
>Limiting the slew rate to something like that means that
>software that is timing things with code like:
> grab time, do something, grab time, subtract
>gets a sane answer if it happens to be running while somebody
>adjusts the time.
Do you know any code that cares if that is wrong by 10% (which would be
100000PPM) Ie, is 10% error insane?
Is 1% (10000PPM)?
Ie, .05% seems a bit extreme for that.
>These are my opinions, not necessarily my employer's. I hate spam.
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