Hi there, I am using powertop to test wakeup of a driver and found the sum of top causes for wakeups is much larger than Wakeups-from-idle per second. It's not consistant with FAQ. Which result is more accurate?
FAQ： *Should "Wakeups-from-idle per second" equal the sum of the wakeups/second/core listed on the "Top causes for wakeups" list?* It should be higher, since there are some causes for wakeups that are nearly impossible to detect by software. http://lesswatts.org/projects/powertop/faq.php Test Log： Wakeups-from-idle per second : 342.8 41.5% (327.5) vp : hrtimer_start_range_ns (hrtimer_wakeup) 29.8% (235.2) <kernel core> : hrtimer_start_range_ns (tick_sched_timer) 10.4% ( 82.4) <kernel IPI> : Rescheduling interrupts 5.8% ( 46.2) USB device 1-2.4 : OnlyDisk (Netac) 3.8% ( 30.0) <interrupt> : prk 3.3% ( 25.7) <interrupt> : ehci_hcd:usb1 .....
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