As I mentioned before, not only speed was important, but also the user-friendliness: how easily I can connect the system to a Windows-network (share), what graphical setup-utilities are available, if there's a package manager and how it works,…
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DSL is a really fast distribution, but it has some problems concerning installing additional software. Because I was not able to install the necessary build-tools I could do nothing in fact. I didn't give myself much time to figure this out, but I think this is something indispensable on a linux-system. It's nice to see my laptop running at this speed, but I think DSL is more a distribution for P1-based systems.