[rrd-users] Doubt work rrdtool intervals

Simon Hobson linux at thehobsons.co.uk
Thu Jun 5 11:47:34 CEST 2014

rseiwert <rob at vca.com> wrote:

> I believe that RRDtool starts at zero no matter what you say the start is

Correct. The nearest step intervals to the ones used start at 1401916350 which is 5 seconds off the times used. Thus each update is apportioned 1/3 to one bucket amd 2/3 to the next.

> ... and then calculates buckets based on the step. If your update is not exactly on the step boundry (starting from zero) then your updates will be interpolated.  Your updates are between these steps so they are being interpolated.


All explained in Alex's tutorial at http://www.vandenbogaerdt.nl/rrdtool/process.php

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