Yo Daniel! On Fri, 6 May 2016 15:34:29 -0400 Daniel Franke <dfoxfra...@gmail.com> wrote:
> On 5/6/16, Gary E. Miller <g...@rellim.com> wrote: > >> Do we have to live with long convergence times? Do you have any > >> theory about what causes this and how it can be fixed? > > > > I have not gone deep into the PLL, grouping, and selection layers. > > Daniel Franke's talk at Penguicon leads me to believe he is > > starting to see these issues. > > Depends what you mean by "see". Well, two steps below grok. No longer blind to the issues. > In the literal, empirical sense, no, I > haven't observed ntpd performance closely enough to possibly notice > this. But I think I understand from first principles why it happens, > and I'm researching Bayesian approaches to clock synchronization that > I think will improve both speed-of-convergence and asymptotic > precision. Great! Also reseaerch chronyd. ntpd and chronyd start with very different assumptions and use cases, which lead to different solutions. When you are ready, we'll bike-shed it for you. :-) RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588
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