[rrd-users] Re: CF confusion, and not average/ratio

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Wed Oct 17 20:37:13 MEST 2001

nuno pires wrote:

> From the Resampling section, of the "How does the MRTG
> Works" FAQ, i took the conclusion that maybe i can use
> RRD to actually stores and show/graph the values i
> actually sent, and not averages.

You can, if you store values at exact intervals.  For instance,
if you have a database with 5-minute time slots, you need to
update at hh:00, hh:05, hh:10 and so on.

> -DO RRDTOOL Updates with the timestamp specified
> exactly equal to the timestamp of the start of each
> timeslot.

Yeah, however it has to be the end of the timeslot.

See http://faq.mrtg.org/intro/mrtg2.html section resampling.
If you get your timing right, resampling is a no-op (but will
still occur).  I think that means you can achieve your goal.


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