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How to simulate more than 250 virtual users on Load Test in VS2010 Beta2?

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VS2010 Beta2 comes with a default license of only 250 virtual users per client. So, if you want to run a load test that needs to simulate more than 250 virtual users, you need to install an additional VU pack.

As written in Ed’s blog, the easiest way to install an extra VU pack is to install a controller and agent on the box. You can also install many agents on the same box or different m/cs.

To add virtual users, start a Visual Studio Command prompt as Administrator (on Vista or Win7, just type Visual Studio Command Prompt in the search window, on XP you’ll find this under the Visual Studio group in the start menu). Then run this command line:

TestControllerConfig licenses /addkey:V10000

This will license the controller for 10,000 virtual users. Note that this license is temporary, and will only work in beta2. For RTM, we will only offer the 1,000 user license pack. If you have a Volume License, you will be able to get your license key from the volume licensing site, and then enter a count of licenses you want to install.

Once you have a virtual user license installed, that license can also be used for local runs (that is, the runs do not have to go through the controller).

If you just want to do local runs, and not use the controller and agent, you can run this from the command line to install the virtual user license:

VSTestConfig licenses /addkey:V10000

This enables you to exceed 250 users for local runs, and unlocks all the cores on your CPU. Pretty cool, eh?

Comments

  • Anonymous
    January 21, 2010
    What is the maximum that it can support? if it was on a really beefy machine would it be able to support 100,000

  • Anonymous
    January 21, 2010
    Hi Trevellyon, that will depend on the machine config, how heavy your app is, network b/w and a host of other factors specific to the app under test. The post is more about how to source licenses for supporting more users. So, if you do have a m/c that can support a 400 users but you don't have licenses for those many virtual users, you can apply the workaround in the post.HTHAnu

  • Anonymous
    February 18, 2010
    How do we add virtual users when using RC?  Thanks. [Anu] The same thing should work for RC. Are you having trouble?

  • Anonymous
    February 18, 2010
    The comment has been removed

  • Anonymous
    July 29, 2013
    I am using visual studio 2010 ultimate. My question is- Is there any trial virtual user licence available for testing the application upto 1000 users.