如何在单元测试仪器性能会话中分析依赖程序集中的方法？

I have a Visual Studio 2008 unit test project that depends on a dll project in the same solution. With this setup, I want to profile a single unit test with a Visual Studio performance session. Said test calls into methods located in the dll project and I want to see where the perf bottleneck is in that dll.I have a Visual Studio 2008 unit test project t