Silk Performer transaction with randomised feature
We have a client-server product where the client can scheduled download from the web server every half an hour. It also contain a randomized delay (30 minutes) feature built in; let's say if the client is scheduled to download at 2.00pm, it will occur anytime between 2.00 - 2.30. The reason for this feature is to avoid network congestion.
How can I simulate this situation in silkperformer?
I thought of using the Increasing Workload model. Can anyone tell me if silkperformer keep repeating the transaction, over and over again until it hit the maximum virtual user capacity? Or does it perform the transaction once and close the connection while increasing the workload and maintain the count for the number of virtual users?