Alejandro Galue wrote: >Graph 1 >http://lists.ee.ethz.ch/p/03-g1.png > >Graph 2 >http://lists.ee.ethz.ch/p/03-g2.png > >The real data is showed on "Graph 2" (the big one); but "Graph 1" (the >small one) shows non valid data. > >If you see Graph 1, almost all peaks dissapears from graph. > >I used "reduce=MAX" on DEF lines but this does not work.
Graph 1 looks very much like the data from graph 2 reduced to a lower resolution by an averaging function. Chances are that the start & end times for your graphs are causing the RRD tool to select a different set of data from your archive than you were expecting. It is a good idea to select your end time as a multiple of the step size for the resolution of the data you want to plot, as in end = end - ( end % step ). Then select your start time as the end time minus the step size times the number of pixels (or should that be "number of pixels - 1" ?). If you want to show max values on a graph then you must have a max value aggregation in your rrd. It is impossible to infer the max values from an average ! -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://lists.ee.ethz.ch/rrd-users WebAdmin http://lists.ee.ethz.ch/lsg2.cgi
