What should I use for build benchmarking?

We are updating our development machines with th开发者_如何转开发e specific purpose of optimizing build times.

I'd like to know what people recommend we use to build as a benchmark. Ideally I'd like something that takes 30 seconds or longer on typcial developer boxes, and something that can be built in Visual Studio 2010 or 2008.

Any recommendations appreciated. I will vote you up one, regardless of your suggestion.

Thanks!

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DotNetNuke worked well for VB.Net build benchmarking as well.