Frequency vs. temp

[Gary E. Miller]

Yo Hal!

On Sun, 08 Jan 2017 14:48:34 -0800
Hal Murray <hmurray at megapathdsl.net> wrote:

> If you modify the code that records the temperature to also grab the
> NTP drift, then you can plot drift vs temperature.

Ths plot is NTP drift vs. temp.  The data in /etc/driftfile
is just the Frequency offset written every hour or so.

> You should be able to do something similar by grabbing the CPU cycle
> counter. I haven't figured out how to do that on a Raspberry Pi.

It has been years since you could cycle count a CPU.  What with all the
run time out of order execution, closed source microcode, etc...

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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