back to bfq as default
Hack mpdecision to force all available CPUs to stay on unless it is early suspend
Restrict disk IO processes to one core

This prevents performance deterioration probably due
to cache flushing as threads bounce around the cores.
For example, before:
write at 14 mb/s
read at 19 mb/s

after:
write at 23 mb/s
read at 20 mb/s
(please confirm with your own testing)