Runtime settings define the way a Vuser script runs, and can be configured before or after you record a script. These settings are stored in files located in the Vuser script folder. Runtime settings are applied to Vusers when you run a script using VuGen, Controller, LoadRunner Enterprise, or Business Process Monitor.
Configuring runtime settings allows you to emulate different kinds of user activity. For example, you can emulate a user who responds immediately to output from the server, or a user who stops and thinks before each response. You can also configure the runtime settings to specify how many times the Vuser should repeat its set of actions.
Different combinations of runtime settings are listed depending on the protocol you are working with. For more information, see Configure runtime settings.
You can export runtime settings to a JSON file and import them into another script, instead of having to set them repeatedly for each script. For more information, see Import and export runtime settings.
Note: Runtime settings for a script can also be modified in Controller, after adding the script to a scenario. The changes apply for the scenario run only, and do not affect the runtime settings of the original script file. For details, see View/Modify scripts in the scenario in the LoadRunner Professional help center (select the relevant version).