Patent ID: 8832330

Claim:
A method, comprising: receiving a latency time series and a plurality of factor time series, wherein the latency time series indicates, for each of a plurality of time instances, a length of time it took for a request to be serviced by a storage system, and wherein each of the factor time series indicates, for each of the time instances, a measurement of a factor potentially contributing to latency of the storage system; for each of the factor time series, computing a correlation time series, wherein the correlation time series indicates, for each of the time instances, a correlation between (i) a segment of the factor time series proximate to the time instance and (ii) a corresponding segment of the latency time series proximate to the time instance; facilitating a display of the latency time series with supplemental information based on one or more of the correlation time series, the supplemental information revealing, for each of the time instances, one of the factors whose factor time series is most correlated with the latency time series proximate to the time instance; and determining a correlator time window duration, wherein respective lengths of the segment of the latency time series and the segment of the factor time series are equal to the correlator time window duration.