Computes the backward difference at each data point in the time series to determine how much the metric has changed from its last value in the series.
delta operator updates the
metric dimension, if present, to
delta($metric). If the original time series does not have a
metric dimension, it creates
metric=delta dimension. Other dimensions remain unaffected.
metric query | delta
Difference in a metric value from previous point
This query returns a time series that reflects the difference in the
Net_InBytes metric for the eth0 interface between a charted value and the one preceding it.
metric=Net_InBytes Interface=eth0 | delta