Performance Testing Microsoft Dynamics AX 2012 Applications Using Visual Studio Ultimate

Hi All,
 
I want to do load tests on Microsoft Dynamics AX 2012 application using Visual Studio 2012 Ultimate. If anyone has done this before or  has any idea about how to do it then please reply.
 
There is a open source tool available called BenchmarkToolKit, but it supports only AX 2009 applications.
 
Please share if you have any knowledge regarding performance/load testing Microsoft Dynamics AX 2012 applications using Visual Studio Ultimate.
 
Thanks in advance,
Sai