On Wed, Sep 08, 2010 at 01:26:02PM -0700, Ricardo Kleemann wrote: > Thanks Simon. > > I'm not yet very familiar with rrdtool, but could I read out data > values for an arbitrary period between time1 and time2 and add up the > values to come up with accumulated? > > I was thinking of a page where I could choose the dates and then have > a graph drawn for those dates, including the accumulated values as > well.
Simplest is to pass that to rrdgraph as new --start and --end times and then use a TOTAL VDEF to sum them. If you truly want to sum something that is only a subset of the graph, I'd probably try to construct a CDEF from the original data and have it nulled out outside the region of interest. Then run TOTAL on it as above. > >I would like to also display an accumulated counter (say total? > >bandwidth for the month), how would I do that on the graph and on? > >the rrd table? If you generate a total with a VDEF, you can print it as part of the legend with GPRINT or to stdout with PRINT. I don't really know what you mean by "on the graph". -- Darren _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
