That's a different type of test. You're talking about testing the performance of your laptop with various configurations. This article is comparing the performa

That's a different type of test. You're talking about testing the performance of your laptop with various configurations. This article is comparing the performance of several versions of Ubuntu and the reason you don't want to use a laptop for that is because laptops have significantly slower hard drives than desktop models (even at the same RPM). Also the laptop they're using has a 5400 RPM drive which doesn't help.