[rrd-developers] Re: Hourly stats (was: newbie CF query)

[Tobias Oetiker]

Today you sent me mail regarding Re: [rrd-developers] Re: Hourly stats...:

*> > 
*> > DEF:vname=rrd:ds-name:CF[:seconds]
*> > 
*> 
*> If possible, it should also be possible to use a resolution that
*> is too high for the graph.
*> 
*> Suppose I have samples every 10 seconds, and would like to use
*> these samples to calculate the maximum value in one period,
*> it would not be good to first average the values (as it does now)
*> 
*> Example: In my previous mail I described the daily overview. It
*> graphs 432 pixels, 20 samples per pixel, for a total of 24 hours.
*> The 20 samples are averaged first and only then the maximum value
*> is calculated.
*> The 2-hour periods are built from 720 samples and since it does not
*> graph it is not averaged first (at least, I think that it works this
*> way ?). The maxima are therefore higher than in the graph.
*> 
*> This could be solved by adding an extra rra (containing maxima and
*> with a lower resolution) but I already have the data available ...

yes I gather this should be no problem ... 

cheers
tobi
*> 
*> Regards,
*> Alex 
*> 

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