Stratum one autonomy and assumptions about GPS

Eric S. Raymond esr at
Fri Aug 26 03:23:05 UTC 2016

Hal Murray <hmurray at>:
> esr at said:
> > I have a USB thermometer on order, they're cheap.  Might I suggest you get
> > one and repeat this experiment, actually plotting your temperature
> > variation? 
> Most CPU chips include a temperature sensor.
> For Linux PCs, you need the coretemp module loaded.  The lm-sensors package 
> does that.
> You can get it by either parsing the output of the sensors command or by 
> looking in things like
>   /sys/devices/platform/coretemp.0/hwmon/hwmon0/temp2_input

Is the CPU temp going to be a good approximation of what the clock sees,
though?  I can think of several reasons to doubt it.
		<a href="">Eric S. Raymond</a>

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