Puzzling clock offset spikes - update 2

Gary E. Miller gem at rellim.com
Sun Jul 8 20:43:06 UTC 2018

Yo Paul!

On Sun, 8 Jul 2018 13:23:39 -0700
Paul Theodoropoulos <paul at anastrophe.com> wrote:

> >> Oh - and previously on ethernet, my Raspi was burning about 2.4 to
> >> 2.7 watts continuously.  
> > Odd.  I'll have to retest.  I thought my power usage was much
> > closer to 5 watts.  
> I'd be surprised if it's that high.  I'd expect your device to be 
> burning up at that rate - I was at 60 deg C at 2.5w.

I just measured a RasPi3 B+ with Uputronics V1 HAT.  I just got 1 Watt
(0.5 Amp).  With ethernet, WiFi off.  Room temp.

I wonder when taht changed?

> better - and while that was running, the unit spontaneously rebooted.
> There's been a few glitches since then too, which I can't entirely
> explain.


> I'm slightly worried my MicroSD may be going, so I have a
> couple more on the way.

I go through a lot of them.

> I'm also contemplating adding an RTC to my
> device, simply because it's annoying as hell running 'last' and
> seeing every reboot having occurred Dec 31, 1969. :)

Odd.  I do not have the problem.  Gentoo resets the clock on boot to
the last time on the file system.

> Here's a link to screenshot from right around when I posted that, to 
> give a better idea in the nearterm -

I'm much more interested in the stats below the png.  Minimum, maximum,
standard deviation, etc.  Hard to eyeball small chnages in the graphs.

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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