The Conclusion is that Linux is faster in every aspect of the test with the exception of Compiling Imagemagick.
Linux largely dominating over OS X Yosemite with a Haswell-based MacBook Air.
And this goes for all the Linux variants in the test. Ubuntu Fedora and OpenSUSE.
Just have a look at the disk transaction process:
That is significant and so it goes on an on.
So Linux should definitely be more expensive than an OSX computer - like Mac.
Imagine how many people who would sleep in front of a Linux computer shop - if it only would exist.. ..