I'm in the process of setting up a Hadoop cluster and have so far been unable to find a good answer for how to configure CPU power in the BIOS for Linux.
My BIOS give a variety of options with regards to CPU power, the main categories are:
- Energy Efficient
- Maximum Performance
There are a slew of other settings (Long duration power limit, short duration, etc..) But lets just talk about the broad strokes and best practices.
My impulse is to either disable power management entirely or to enable maximum performance - but of course the downside to that is paying for the watts when I'm not using them.
Is Linux CPU power management good enough at this point that an earth and datacenter cooling/power friendly BIOS will still let me get the maximum potential out of my Hadoop cluster?
Or should I just play it old-school and disable power management?