Messages in this thread | | | Date | Tue, 22 Jul 2014 18:29:40 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC] sched_clock: Track monotonic raw clock |
| |
On Tue, Jul 22, 2014 at 05:17:23PM +0100, Pawel Moll wrote: > > Now, I already mentioned max error bounds, and I've not yet looked at > > your actual control loop, but that is something to keep in mind, we want > > something that's limited. > > Indeed. Richard has already expressed concerns that my coefficients > won't work everywhere (as in with different clock rate ratios) and he's > most likely right. My money is on a more advanced, "self-tuning" > solution, where we definitely need an escape condition.
I was wanting to look up software PLLs, as I seem to remember that's what NTP and PTP use, but Richard should know I think.
Its not really a subject I've looked at before.
| |