title: Data driven load testing with Visual Studio - where are web tests generated?
body: <p>I have set up a Web Performance Test and Load Test project in Visual Studio 2013 that uses data driven web tests based on a local SQL Server data source. Eventually I would like to set up a test controller and test agents in order to distribute the load from multiple clients. </p>
  
  <p>My question is about the architecture of the controller and agents. Does each test agent also need access to the data source that generates content for the web tests or is the web test (and its dynamic parameters) generated at the controller and then distributed to the test agents? </p>
  
  <p>Below is a diagram I found of the architecture: </p>
  
  <p><img src="https://i.stack.imgur.com/mDVwk.png" alt="enter image description here"></p>