[rrd-users] Re: totals

[Alex van den Bogaerdt]

Billy Cook wrote:
> 
> Hi,
> Does anyone know how to calculate the total value of a data point over a period of time?  I searched the list archive and was only able to find a VDEF TOTAL command that appears to be no longer supported. 

s/no longer/not yet/

Have a look at the 1.1.x beta.

However, total amount of bytes can be calculated so:  rate * time.

If you know the time (because you set it using --start and --end)
you can take the average and compute the total:

   --end now --start end-86400s
   DEF:ds0=/path/to/file.rrd:ds0:AVERAGE
   CDEF:sum=ds0,86400,*
   PRINT:sum:AVERAGE:"total = %6.2lf"

This doesn't take unknown intervals into consideration.

HTH
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