[LinuxPPS] assert/clear

[Remco dB]

On Thursday 29 July 2010 17:08:37 Miroslav Lichvar wrote:
> Ah, ok. Root mean square would be a better measure, but I'm not sure
> if you can calculate it easily in rrdgraph.
> 
> > Bear in mind that the PLL-clock crystal (14.31818 MHz) of helium is
> > thermally stabilized.
> 
> Nice. What polling interval do you use? If the clock is very stable
> using longer polling interval might improve the accuracy a bit.

I use 5 min polling interval, i.e. every 5 minutes cron executes the 
RRD job and generates/updates the graph.