This filter specifies which zones to save among all the Generators used during the load test.
The zone filter is available when the statistics have been saved for each zone during the test. This can be enabled in the project preferences, Runtime parameters section. For more information, see General.
In a test that uses several Load Generators located in different geographic locations, it may be useful to obtain zone-specific, and thus location-specific, statistics. This highlights any performance glitches due to the user's geographical location with regard to the tested web application.