I need to run three machines as a cluster at home and want maximum performance from them, running an Erlang program.
What is the best OS to use for this?
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I'm running both an Ubuntu server and a FreeBSD server headless. The FreeBSD one sits here in a cabinet, the Ubuntu one in a co-lo facility.
The difference is negligible, both are easy enough to administer via ssh if you know what you're doing. At the end of the day it boils down to what you're most familiar with because being able to come up with an optimal hardware/software combo and administer that will make a far bigger impact on the overall performance than your choice of OS.