Hi,
Since 1.4 (or may be 1.3, I do not tested) I've a process who wake up my CPU
a lot. It is called "extra timer interrupt". Can anyone tell me what it is ?
Thanks a lot for your help.
Antoine
PowerTOP version 1.4 (C) 2007 Intel Corporation
Cn Avg residency (5s) Long term residency avg
C0 (cpu running) (19.6%)
C1 0.0ms ( 0.0%) 0.0ms
C2 3.4ms ( 3.7%) 2.2ms
C3 1.0ms (76.7%) 1.0ms
Wakeups-from-idle per second : 815.9
Power usage (ACPI estimate) : 11.3 W (5.4 hours left)
Top causes for wakeups:
95.6% (1166.6) <interrupt> : extra timer interrupt
1.1% ( 13.8) <interrupt> : ohci1394, ipw3945
0.7% ( 8.8) <interrupt> : ehci_hcd:usb1, uhci_hcd:usb2
0.3% ( 3.4) <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)
0.3% ( 3.4) pcscd : do_nanosleep (hrtimer_wakeup)
0.2% ( 2.8) powersaved : queue_delayed_work_on
(delayed_work_timer_fn
)
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