Configure a population
In the Populations tab, a click on a Population in the Populations list updates the Content group box. The box also shows the parameters of every User Path.

- Tip: The Content table lists the User Paths of the Population. It also shows the main parameters of every User Path. The parameters columns can be customized with a click on the top right-end corner of the table.
When a User Path is selected, its parameters can be modified in the Parameters group box:
- Percentage of the User Path in the Population
- Browser used by the User Path. For more information, see Browser profile.
- WAN emulation simulating the network conditions for the User Path
- Cache behavior
- To configure a population
- In the Design section, select the Populations tab.
- In the Populations list, select a Population.
- In the Content group box, you can click the + (plus) button to add more User Paths to your population.
- To configure a User Path, select it and modify it in the Parameters group box.
- In User Path, you can change your User Path selection.
- In Percent, enter the amount of User Paths in the Population, or use the slider.
- In Browser, click the picker button to display the Browser box:
- In the Available browser profiles list, select a browser type:
- Recorded one to reuse the browser of the recording, or
- Customized to create a profile with specific values entered in Parameters, or
- a pre-configured profile.
- Check HTTP/2 to have NeoLoad replay the scenario with the HTTP/2 protocol when the server is HTTP/2 compliant.
- Check Handle cookies only to stress the server with its URL rewriting facility.
- In Parallel connections, enter the number of simultaneous connections on the server triggered by every Virtual User.
- Click OK.
- In WAN Emulation, click the picker button to display the WAN Emulation box:
- In the Available WAN Emulation profiles list, select an emulation profile:
- Unlimited to discard all limitations for a network emulation, or
- Customized to create a profile with specific values entered in Parameters, or
- a pre-configured profile.
- For a mobile pre-configured profile, in Signal strength, select the quality of the network.
- In Upload and Download, enter the simulated bandwidths in Kbps or Mbps.
- In Upload latency and Download latency, enter the simulated extra delays in ms, or use the slider.
- In Upload packets dropped and Download packets dropped, enter the percentage of packets lost in the emulation, or use the slider.
- Click OK.
- In Handle cache, select the cookies management option:
- As recorded to reuse the configuration at the scenario recording.
- New user to have Virtual Users started with an empty cache.
- Returning user: The Virtual User cache is up to date. The application does not return any response which contains information that is already cached.