Comment 20 for bug 524281

dell xps m1330, intel t8300 on ubuntu final 10.04 gives:

Top causes for wakeups:
  50.6% ( 63.5) [kernel scheduler] Load balancing tick
  12.1% ( 15.1) [ata_piix] <interrupt>
  10.7% ( 13.4) [iwlagn] <interrupt>
   7.1% ( 8.9) [extra timer interrupt]
   4.0% ( 5.0) syndaemon
   1.6% ( 2.0) [nvidia] <interrupt>

This problem is huge, 50% of cpu wakeups!?