5 hr test sounds bad, but I've heard of 10 hr tests in resistant materials.
Anyway, I really just wanted to mention that I am currently on puppy linux. Now, puppy linux is quite cool, I must say. I know virtually no commands, as is generally required with certain linux distributions, but with puppy Ive been going fine. One of the main benefits of puppy is the fact that it can stop my laptop fan constantly whirring, something which windows fails abysmally to do. Also, puppy's fast. Also, puppy works in RAM, which is nice. Also, I carry puppy around with me, on a USB with multiple boot thingies on it, all thanks to MUBI. Also, puppy boots fairly fast-ish.
One problem though is that shutdown takes a while.