How can we test 500 users and  2k users are using a my application at same time ? Do I have to write a code !! 

I am totally new for this. From Developer prespective.

Thank You and hope for positive response.

I remain ......


Thanks

I have also never had the opportunity to do load testing and performance testing. But no you do not write code for that. There are several tools that are used for load testing. these tools create virtual users and hit your application for load testing.

http://www.opensourcetesting.org/performance.php