[rrd-users] Data at random timestamps?

Simon Hobson linux at thehobsons.co.uk
Sun Mar 11 11:41:02 CET 2012


jh500 wrote:

>Is it correct that RRD just worsk with data points given at regular time
>intervals?

Yes

>So if I get my data points at very non-regular time intervals, there is
>nothing I could use RRD tool for?

Depends what you are trying to achieve.
If your application lends itself to having the data normalised to 
fixed time intervals, stored efficiently, and plotted on good quality 
graphs - then yet it may be of use to you.
If not, then no it probably isn't the right tool.

It would probably help you understand what RRD does, and decide if 
it's useful to you, if you took a look at Alex's tutorials :
http://www.vandenbogaerdt.nl/rrdtool/
Specifically, "Rates, normalizing and consolidating" explains how it 
handles data that doesn't arrive on nice regular time interval 
boundaries.

-- 
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.



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