When data transformation is in progress, the Statistics subtab under the Settings tab displays a graph showing the rate at which the data is being transformed. The sampling interval is the frequency, in seconds, at which the data is updated. You can edit this value to set a new value according to your preference.
To edit and set a value for the sampling interval, perform the following tasks:
Click Manage.
Under Source Database Hosts, select your source database.
In the Transformations Source pane, click the Settings tab, and then click Statistics.
It displays the default sampling interval time, which is 2 seconds.
Click Edit .
In the Edit Statistic Settings dialog box, enter a value between one and five seconds, and click Save.
Select Reset to Default to retain the default settings.
Note: Changes in the statistics settings take effect immediately. Restarting the Administrative Service, the Runtime Service, or the Agent is not required.