If possible I would really like to do it all in the graph. To define the peak mathematically something like the following would be ideal. Break the day into hour blocks and average out of the bandwidth usage of the blocks. Then take that result and pick the highest value block as the peak value for the day. Lastly, trend these values over a larger period of time. This seems like something that would be easy to do in the rra originally -- but I want to work with existing data.
Does that make sense? On Wed, Feb 9, 2011 at 2:51 PM, Karl Fischer <[email protected]> wrote: > Am 09.02.2011 20:09, schrieb Kyle Brandt: >> A lot of my data peaks each day during the busiest hours, so the >> graphs basically form a wave. Is there a way I can CDEF a trend that >> is the trend of these peaks instead of the full set of data? > > only if you can mathematically define what a peak is. > > Let's say you could CDEF/VDEF the AVERAGE and the MAX over the entire > period and then define that everything between AVG & MAX is a peak. > That could be trended ... but that's probably not what you want. > > You could also define a new rra::MAX with a period of maybe 1 hour > and then trend the values out of this rra ... > > I have similar problems where a certain behavior is easy to spot > visually but almost impossible to define mathematically ... > > - Karl > _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
