[rrd-users] Rrdtool for counting irregular events

Rafal Gwizdala rafal.gwizdala at gmail.com
Mon May 21 11:34:46 CEST 2012

That's a little difficult. My application allows the users to specify date
range themselves by dragging a selection over the graph (just like in Cacti)
So I don't have a control on what the date range will be.
Anyway, would you mind telling us about your best practices for graph
range/step calculation?


On Mon, May 21, 2012 at 10:42 AM, Simon Hobson <linux at thehobsons.co.uk>wrote:

> You're best doing your own calcs anyway (and explicitly specify the
> resolution of data to be used) - it means you can optimise the
> graphs. If you just do (for example) "now-1month" to "now" then the
> graph may not be optimal. Pixels on the graph may not exactly match
> your data points, and so further data manipulation is needed. Also, I
> believe it's been vastly improved, but there used to be some
> situations where you could get the "wrong" consolidation used - a
> graph with lower resolution data than it should be.
> --
> 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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