[rrd-users] [unsure] Re: Capturing a noisy count variable (Geiger counter)

[Alex van den Bogaerdt]

----- Original Message ----- 
From: "Alan Finlay" <alan.websites2 at chankly.com>
To: <rrd-users at lists.oetiker.ch>
Sent: Monday, April 15, 2013 4:33 PM
Subject: [unsure] Re: [rrd-users] Capturing a noisy count variable (Geiger 
counter)


> Thanks Simon, that does explain a lot.
>
> What it does not cover, is which DS types allow multiple updates within a
> single step, if any.  I seems it does not work for ABSOLUTE, at least.

They all do, but probably in a different way than you would like to.
When updating, all that's done is computing a rate. MIN/MAX/AVG is done only 
when the rate goes into a CDP. This is too late for what you want.
The solution: a single step is 1 second. Your finest RRA is 300 steps (or 
whichever number you choose) of one second instead of having 1 step of 300 
seconds.

HTH
Alex