How to do load-testing for 100 concurrent users login with unique username and passwords using Visual Studio 2013?

My test plan scenario is to do load-testing for 100 concurrent users login to website.

I have created Web Performace Test with login action recorded and hooked up the login details (under Form Post Parameters) with a CSV file (which contains 100 users login details).

What do I do now to perform a load test and test 100 concurrent users login?

Is this the right way to do or is there any alternative way to achieve this?