Enable Automatic calculation to let Silk Performer calculate the number of virtual users per process.
Disable Automatic calculation to manually enter a value into the Virtual users per process field.
In the Stop virtual users after __ transaction failures field, enter the number of transaction failures after which virtual users should be stopped.
Select LAN to optimize the controller-agent communication for a local area network.
This is especially useful if all of the agent computers you are going to use for your load tests are located in the same local area network and all are using a fast connection.
Select WAN to optimize the controller-agent communication for a wide area network.
This is especially useful if you are going to use many agent computers that are located somewhere on the Internet.