[rrd-users] Quick question on how RRD tool updates work....

[Watts, Brad]

> Hi all,
> I am polling a number of 64-bit counter values every 5 minutes / 300
> seconds. In reality, I do not poll each device every 300 seconds exactly.
> There will inevitably be some degree of variation in the frequency of data
> acquisition. 
> Question:	If the duration of time since last polling a device is over
> the 5 minute mark (say 6 minutes), does RRD Tool calculate the 5 minute
> average by dividing the delta by 360 seconds instead of 300 ?
> I found the following blurb from RRD Tool's Web page (below). It reads
> like it might. Just want to be sure though...
> Thanks in advance....
> Brad
> 
> 
> 
> Data acquisition
> When monitoring the state of a system, it is convenient to have the data
> available at a constant interval. Unfortunately you may not always be able
> to fetch data at exactly the time you want to. Therefore rrdtool lets you
> update the logfile at any time you want. It will automatically interpolate
> the value of the data-source ( DS) at the latest official time-slot and
> write this value to the log. The value you have supplied is stored as well
> and is also taken into account when interpolating the next log entry.
> 

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