Facebook switching to ARM
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Google is scouting around to make own ARM chip while Facebook is now thinking about using ARM chips to build their data centers.
90% of the energy is wasted in a data center built with Intel chips, and so everyone now wants ARM. They can easily increase the server count from million to tens of millions and still clock in less power.The only thing I would say to Facebook developers and ARM developers who are thinking of using their own ARM chips for servers is to make sure they have for their ARM ONE SINGLE HEADER FILE that describes ALL registers and ALL bit fields. When they switch to another ARM chip or upgrade, they then have only one single header file to change and very few other modifications which can be done in hours to days to get Linux working on their new chip.