Displaying recent-history values

When you use the onperf utility, you can scroll back over previous metric values that are displayed in a line graph. This is useful for analyzing recent trends.

The time interval to which you can scroll back is the lesser of the following intervals:
  • The time interval over which the metric has been displayed
  • The history interval that the graph-tool Configuration dialog box specifies

    The length of time you can scroll back through cannot exceed the depth of the data-collector buffer.

    For more information, see The graph-tool Configure menu and the Configuration dialog box.

Maximum scrollable intervals for metrics that span different time periods illustrates the maximum scrollable intervals for metrics that span different time periods.
Figure 1: Maximum scrollable intervals for metrics that span different time periods

This figure is described in the surrounding text.