Comment 31 for bug 877560

I think it might be that powertop is on crack here. I see that at the top of powertop's overview all the time (with only a few terminals open), but on powertop-1 it never shows up. Here's a snapshot of both, taken at the same time (on precise):

powertop:
                Usage Events/s Category Description
             2316 rpm Device Laptop fan
            100.0% Device Audio codec hwC0D0: Conexant
             16.3 ms/s 85.9 Process /usr/bin/X :0 -auth /var/run/lightdm/root/:0 vt7 -novtswitch -background
             16.9 ms/s 59.5 Process compiz

powertop-1:
Top causes for wakeups:
  29.5% (136.3) [Rescheduling interrupts] <kernel IPI>
  17.0% ( 78.7) [i915] <interrupt>
  11.5% ( 53.0) compiz
   8.1% ( 37.7) [ehci_hcd:usb2] <interrupt>