*** 2.6.26.3 on on mains *** PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) ( 0.4%) 1333 Mhz 0.0% polling 0.0ms ( 0.0%) 1200 Mhz 0.0% C1 0.0ms ( 0.0%) 1067 Mhz 0.0% C3 14.0ms (99.6%) 800 Mhz 100.0% Wakeups-from-idle per second : 71.5 interval: 15.0s no ACPI power usage estimate available Top causes for wakeups: 33.1% ( 23.7) : iwl4965 19.6% ( 14.1) : extra timer interrupt 11.4% ( 8.1) : usb_hcd_poll_rh_status (rh_timer_func) 9.0% ( 6.5) artsd : schedule_timeout (process_timeout) 7.1% ( 5.1) : Rescheduling interrupts =================================================================== *** 2.6.27.4 on battery *** PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) ( 0.7%) 1333 Mhz 0.0% polling 0.0ms ( 0.0%) 1200 Mhz 0.0% C1 0.0ms ( 0.0%) 1067 Mhz 0.0% C2 0.8ms ( 0.0%) 800 Mhz 100.0% C4 20.1ms (99.3%) Wakeups-from-idle per second : 49.8 interval: 15.0s Power usage (ACPI estimate): 8.5W (4.9 hours) Top causes for wakeups: 21.6% ( 9.3) : iwlagn 19.0% ( 8.1) : mod_timer (rh_timer_func) 13.2% ( 5.7) artsd : __mod_timer (process_timeout) 10.4% ( 4.5) : Rescheduling interrupts ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *** 2.6.27.4 on mains *** PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) ( 0.3%) 1333 Mhz 0.0% C0 0.0ms ( 0.0%) 1200 Mhz 0.0% C1 0.0ms ( 0.0%) 1067 Mhz 0.0% C3 19.2ms (99.7%) 800 Mhz 100.0% Wakeups-from-idle per second : 52.0 interval: 15.0s no ACPI power usage estimate available Top causes for wakeups: 20.3% ( 8.2) : iwlagn 19.8% ( 8.0) : mod_timer (rh_timer_func) 13.9% ( 5.6) artsd : __mod_timer (process_timeout) 9.3% ( 3.7) : Rescheduling interrupts =================================================================== *** 2.6.28-rc4 on mains *** PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) ( 0.4%) 1333 Mhz 0.0% polling 0.0ms ( 0.0%) 1200 Mhz 0.0% C1 0.0ms ( 0.0%) 1067 Mhz 0.0% C3 16.7ms (99.6%) 800 Mhz 100.0% Wakeups-from-idle per second : 59.7 interval: 15.0s no ACPI power usage estimate available Top causes for wakeups: 21.5% ( 15.6) : Rescheduling interrupts 13.5% ( 9.8) : iwlagn 13.5% ( 9.8) : hrtimer_start (tick_sched_timer) 11.0% ( 8.0) : mod_timer (rh_timer_func) 9.8% ( 7.1) : extra timer interrupt ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *** 2.6.28-rc4 just after switch to battery *** PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) (71.6%) 1333 Mhz 0.0% C0 0.0ms ( 0.0%) 1200 Mhz 0.0% C1 0.0ms (614891469122. 1067 Mhz 0.0% C2 0.5ms ( 0.1%) 800 Mhz 100.0% C4 3.8ms (29.5%) Wakeups-from-idle per second : 54.4 interval: 15.0s Power usage (ACPI estimate): 10.0W (4.4 hours) Top causes for wakeups: 26.8% ( 41.3) : Rescheduling interrupts 20.7% ( 31.9) : uhci_hcd:usb4, HDA Intel 11.8% ( 18.1) : iwlagn 10.1% ( 15.5) : extra timer interrupt 5.7% ( 8.7) : hrtimer_start (tick_sched_timer) 5.2% ( 8.0) : mod_timer (rh_timer_func) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *** 2.6.28-rc4 on battery after settling down *** PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) ( 0.6%) 1333 Mhz 0.0% C0 0.0ms ( 0.0%) 1200 Mhz 0.0% C1 0.0ms ( 0.0%) 1067 Mhz 0.0% C2 8.1ms ( 0.4%) 800 Mhz 100.0% C4 14.5ms (99.0%) Wakeups-from-idle per second : 69.0 interval: 15.0s Power usage (ACPI estimate): 8.7W (4.9 hours) (long term: 26.2W,/1.6h) Top causes for wakeups: 24.0% ( 21.4) : Rescheduling interrupts 17.8% ( 15.9) : extra timer interrupt 15.7% ( 14.0) : iwlagn 10.9% ( 9.7) : hrtimer_start (tick_sched_timer) 9.0% ( 8.0) : mod_timer (rh_timer_func) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *** 2.6.28-rc4 on mains again *** PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) ( 0.3%) 1333 Mhz 0.0% C0 0.0ms ( 0.0%) 1200 Mhz 0.0% C1 0.0ms ( 0.0%) 1067 Mhz 0.0% C3 17.5ms (99.7%) 800 Mhz 100.0% Wakeups-from-idle per second : 57.1 interval: 15.0s no ACPI power usage estimate available Top causes for wakeups: 26.4% ( 17.7) : Rescheduling interrupts 15.1% ( 10.1) : iwlagn 11.9% ( 8.0) : mod_timer (rh_timer_func) 8.9% ( 6.0) : extra timer interrupt 8.4% ( 5.7) : hrtimer_start (tick_sched_timer)