http://www.cnblogs.com/heqichang/archive/2011/11/20/2256478.html
http://www.cnblogs.com/Binhua-Liu/archive/2012/10/01/2709691.html
load test:
http://www.cnblogs.com/sxhNicole/archive/2012/11/20/Web_Performance_Test-Visual_Studio_Part_I.html
http://www.cnblogs.com/sxhNicole/archive/2012/11/20/2778923.html
http://www.dotnetfunda.com/articles/show/1563/web-performance-test-using-visual-studio-part-iii
Part I: Web Test and Customization
Part II: Load Test, RIG and Load test terminologies.
Part III: Performance Counters, Load Test Result Analysis.