Puzzling clock offset spikes

[Gary E. Miller]

Yo Paul!

On Wed, 4 Jul 2018 18:37:46 -0700
Paul Theodoropoulos <paul at anastrophe.com> wrote:

> What changed: I'd poked around with assorted parameters of the "dwc" 
> module, which apparently drives the USB subsystem. It got to where
> I'd added all of these dwc module options to the /boot/cmdline.txt:

You are runnning USB on a timekeeping RasPi?  I stopped doing that
when I noticed it wrecked havok with my measurements.  Unplug!

Of course the ethernet goes through USB on the RasPi, so minimize
ethernet usage too.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588

	    Veritas liberabit vos. -- Quid est veritas?
    "If you can’t measure it, you can’t improve it." - Lord Kelvin
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