[rrd-users] I have what i hope is a simple question
linux at thehobsons.co.uk
Tue Jun 29 10:10:00 CEST 2010
Jack Tavares wrote:
>Maybe I haven't had enough coffee yet this morning, but I am having
>trouble figuring this out.
>I put in a DERIVE type for "transactions" and CF using averages.
>That give me a nice graph for the transactions / second.
>What I also want is the total transactions for a given period. (not the rate)
>I can compute that from the average, but there is going to be some
Unless you are very careful in how you enter data, it is all
normalised anyway. Values are held to a fairly high precision, so
multiplying the resultant rate by the time will give you a fairly
accurate result. There isn't any other way - RRD tool does not store
actual values, everything is converted to a rate.
You can minimise errors by ensuring that you enter data exactly on
every step boundary, and exactly on those step boundaries - that way
normalisation is a null operation.
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