Hello,
i am seeing the same behaviour, hrtimer_start_range_ns causes more than
2000 wakups:
87.4% (2002.0) kernel core : hrtimer_start_range_ns (tick_sched_timer)
7.6% (174.2) interrupt : ahci
1.3% ( 30.2) interrupt : iwlagn
1.2% ( 27.2) interrupt : acpi
0.7%
As pointed out in this thread
http://forum.notebookreview.com/showthread.php?t=342947 the Solution
used in the Z-Series is built by NVIDIA . The Author also states, that
the same technology is used in other notebooks. If this is indeed true,
it should be possible for NVIDIA to provide drivers
