William Unruh writes: > On 2015-02-11, Harlan Stenn <st...@ntp.org> wrote: > > It's one thing if a system rarely steps. It's a bit different if those > > steps happen more frequently. > > Yes. And it is either equally rare that the system will go over 500PPM, > but sometimes a computer can have a large "natural" drift, (even over > 500PPM) and that will drastically reduce the "headroom" to deal with > unusual situations. (ie, if the computers normal drift is 400PPM, that > means that the effective cap is only 100PPM, not 500). > stepping is much worse than high PPM since it is infinite PPM.
Where would you get the idea that a 400ppm swing would be "normal"? Or even 200PPM? > Note that were ntpd designed for 5000 PPM then anything else could > follow it since it could also do 5000 PPM. Sure, and if it was designed for 10S/S it would handle 10S/S swings. But none of this has been shown to be normal or useful. > Yes, we are talking about choices. And all I was saying was that this > particular choice was somewhat arbitrary. That depends on your definition of "somewhat". More or less, "everything tastes like chicken". More or less... H _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions