| 摘要 |
A method of analysing streams of metric data from a plurality of data processing sources (2) in a parallel processing system (1), using a computer (6). Each stream includes time stamped data associated with the respective data processing source in respect of a given metric which is sampled at intervals. For each stream of data, a start time and an end time are identified. A normalized start time and a normalized end time are determined across all streams. Sampling points are specified between the normalized start time and the normalized end time. For each stream of data, the data is re-sampled at the specified sampling points. For each sampling point,the re-sampled data across all the streams of data is processed to determine a statistical derivative of the data.A report is displayed which represents the values of the statistical derivative as a function of time. The process may be applied to various different metrics, and the results displayed at the same time, on a common time axis. |
