Re: [chrony-dev] [GIT] chrony/chrony.git branch, master, updated. 1.25-pre1-18-g20a4340

[Miroslav Lichvar <mlichvar@xxxxxxxxxx>]

On Fri, Apr 15, 2011 at 11:02:21AM -0700, Bill Unruh wrote:
> On Fri, 15 Apr 2011, Miroslav Lichvar wrote:
> >Hm, I have run few more simulations and it seems the overall accuracy
> >is about 10% worse than with the weighted variance.
> 
> Not sure what you mean by this. Do you mean that the std dev is larger by 10%
> or that the fit to the simulation input is worse? If the latter what model did
> you use to generate the chances in round trip time?

Yes, the fit is worse. RMS time error of the simulated clock is larger
by about 10%, depending on the simulation and the jitter, it's not
much, but measurable. I've tried exponentialy and normally distributed
network delays.

-- 
Miroslav Lichvar

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