Comment 11 for bug 1489412

Actually PREEMPT_RT should make your kernel slower (more preemption points, threaded irq vs fast irq, etcetc) so i'm suspecting it's something else in the config or a regression in the kernel itself, more than the PREEMPT_RT patch.

Before i investigate producing an -rt kernel for the rpi2, i need one last test: can you turn off the PREEMPT_RT option in the debian kernel and test it?