asp.net mvc user load testing

I need to login in 开发者_运维技巧about 100 users each with their own session to test a web application. I need to then have some users do some activity.

Which tool can I use to login many users each with their own session?

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Definetely use Visual Studio 2010 Ultimate edition if you have it. Make sure you set the Percentage of New Users property to 100 in the load test properties.

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Our product, Web Performance Load Tester, does that, as do most load testing tools.