How to Distribute Load Generators Among Vuser Groups

This task describes how to distribute load generators automatically and manually among Vuser groups participating in the performance test.

To learn more about load generator distribution, see Load Generator Distribution Overview.

1. Prerequisites

   Add Vuser groups to participate in the test. For details, see How to Define a Performance Test Workload.

2. Select a load generator distribution method

   In the Performance Test Designer window, click Groups & Workload. On the Groups pane toolbar, in the LG Distribution box, select one of the following options:

   • Assign all to each group. Assigns all the load generators automatically to each Vuser group.

   • Assign manually. Enables you to assign load generators manually to the Vuser groups.

3. Specify the load generators to use in the test

   • If you selected Assign all to each group above, the LG box is displayed to the right of the LG Distribution box.

     Type the number of load generators to use in the test and press Enter. The automatch load generators are distributed to each of the Vuser groups and are displayed in the Load Generators column.

   • If you selected Assign manually above:

     • To select the same load generators for multiple groups at once, click the Assign Load Generators to Multiple Groups button. In the dialog box that opens, select automatch and/or specific load generators to multiple groups

       Similarly, you can remove load generators that have been assigned to the groups.

       For user interface details, see Assign Load Generators to Multiple Groups Dialog Box.

     • To select load generators for a specific group only, you can use the link that appears in the Load Generators column of a selected group. Click the link and select automatch and/or specific load generators to assign to the group.

       For user interface details, see Select Load Generators Dialog Box .

4. Select properties for the automatch load generators - optional

   You can select properties for the automatch load generators that are assigned to Vuser groups in your test. Properties include a location and other attributes. At runtime, each automatch load generator is matched up with an available specific load generator (in the host pool of the project) with the same properties.

   To select properties for automatch load generators, click the Configure Automatch Load Generator Properties button, select one or more automatch load generators, and enter a location and/or attributes.
   

   For user interface details, see Automatch Load Generators Properties Dialog Box.

   Note: If no properties are specified, the automatch load generator is matched up with any load generator in the project's host pool.