Comment 0 for bug 1531851

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John-Magne Bredal (john-m-bredal) wrote : trend information in graphs

Compare the current target in the graph with the values for the former
interval. For instance if you are watching packet round trip times for this
week, then display the values for the last week in the graph so that trends
are clearly visible.

This can be quite easily done with the timeShift function in Graphite.

http://graphite.readthedocs.org/en/1.0/functions.html#graphite.render.functions.timeShift