> # Generating Top10 Reports in Performance Manager

> You can generate historical Top10 reports that can be saved for later review. These reports list the entities from the data collection, with the most active entities appearing first. This is a static, one-time only report that generates averages and graphs of the data collection as a snapshot at the time the report is generated. These Top10 reports differ from the other monitoring tables and graphs in Performance Manager in that the other data is continuously monitored and is sortable on any table column. The Top10 reports are a snapshot view at the time the report was generated and are static. These are one-time reports that generate averages and graphs of the data collection as a snapshot at the time the report is generated.

> Tip Name the reports with a timestamp so that you can easily find the report for a given day or week.

> These Top10 reports differ from the other monitoring tables and graphs in Performance Manager in that the other data is continuously monitored and is sortable on any table column. The Top10 reports are a snapshot view at the time the report was generated.

> Note Top10 reports require analyzing the existing data over an extended period of time and can take hours or more to generate on large fabrics.

> See the "Creating a Custom Report Template" topic for information on creating a Top10 report.

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