https://bugzilla.kernel.org/show_bug.cgi?id=25542
--- Comment #2 from Scott <outrageousf...@gmail.com> 2010-12-27 09:33:40 ---
Powertop:
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Cn Avg residency P-states (frequencies)
C0 (cpu running) ( 1.6%) 2.54 Ghz 0.0%
polling 1.9ms ( 0.0%) 2.54 Ghz 0.0%
C1 mwait 1.5ms ( 5.4%) 2.40 Ghz 0.0%
C3 mwait 15.4ms (93.0%) 2.27 Ghz 0.0%
1199 Mhz 100.0%
Wakeups-from-idle per second : 95.8 interval: 5.0s
no ACPI power usage estimate available
Top causes for wakeups:
55.4% ( 88.8) <kernel core> : hrtimer_start_range_ns (tick_sched_timer)
17.3% ( 27.8) <interrupt> : i915
14.5% ( 23.2) <interrupt> : acpi
3.6% ( 5.8) <kernel core> : hrtimer_start (tick_sched_timer)
2.5% ( 4.0) autocutsel : hrtimer_start_range_ns (hrtimer_wakeup)
1.1% ( 1.8) <kernel core> : clocksource_watchdog (clocksource_watchdog)
0.7% ( 1.2) <interrupt> : PS/2 keyboard/mouse/touchpad
0.7% ( 1.2) Xorg : mod_timer (i915_hangcheck_elapsed)
0.6% ( 1.0) sleep : hrtimer_start_range_ns (hrtimer_wakeup)
0.6% ( 1.0) <kernel core> : enqueue_task_rt (sched_rt_period_timer)
0.6% ( 1.0) Xorg : mod_timer (intel_gpu_idle_timer)
0.6% ( 1.0) ntpd : hrtimer_start_range_ns (posix_timer_fn)
0.5% ( 0.8) Xorg : queue_delayed_work (delayed_work_timer_fn)
0.2% ( 0.4) urxvt : schedule_timeout (process_timeout)
0.2% ( 0.4) Xorg : hrtimer_start_range_ns (hrtimer_wakeup)
0.2% ( 0.4) Xorg : mod_timer (intel_crtc_idle_timer)
0.1% ( 0.2) <interrupt> : eth0
0.1% ( 0.2) init : hrtimer_start_range_ns (hrtimer_wakeup)
0.1% ( 0.2) awk : schedule_timeout (process_timeout)
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cat /proc/interrupts
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CPU0 CPU1 CPU2 CPU3
0: 47 0 0 0 IO-APIC-edge timer
1: 70 74 76 74 IO-APIC-edge i8042
8: 0 0 0 1 IO-APIC-edge rtc0
9: 539 535 517 529 IO-APIC-fasteoi acpi
12: 239 236 237 235 IO-APIC-edge i8042
16: 7 6 6 7 IO-APIC-fasteoi
ehci_hcd:usb1, mmc0, jmb38x_ms:slot0
22: 45 43 45 43 IO-APIC-fasteoi HDA Intel
23: 16 14 15 16 IO-APIC-fasteoi
ehci_hcd:usb2
24: 0 0 0 0 HPET_MSI-edge hpet2
25: 0 0 0 0 HPET_MSI-edge hpet3
26: 0 0 0 0 HPET_MSI-edge hpet4
27: 0 0 0 0 HPET_MSI-edge hpet5
34: 25 18 20 24 PCI-MSI-edge eth0
35: 648 662 665 650 PCI-MSI-edge ahci
36: 865 865 872 875 PCI-MSI-edge i915
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 5643 5080 4769 4948 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 0 0 0 0 Performance monitoring
interrupts
PND: 0 0 0 0 Performance pending work
RES: 86 70 112 67 Rescheduling interrupts
CAL: 27 41 29 39 Function call interrupts
TLB: 212 369 574 703 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 2 2 2 2 Machine check polls
ERR: 0
MIS: 0
-------------------------------------------------------------------------------
grep. /sys/firmware/acpi/interrupts/*:
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/sys/firmware/acpi/interrupts/error: 0
/sys/firmware/acpi/interrupts/ff_gbl_lock: 0 enabled
/sys/firmware/acpi/interrupts/ff_pmtimer: 0 invalid
/sys/firmware/acpi/interrupts/ff_pwr_btn: 0 enabled
/sys/firmware/acpi/interrupts/ff_rt_clk: 0 disabled
/sys/firmware/acpi/interrupts/ff_slp_btn: 0 invalid
/sys/firmware/acpi/interrupts/gpe00: 0 invalid
/sys/firmware/acpi/interrupts/gpe01: 1 enabled
/sys/firmware/acpi/interrupts/gpe02: 15 enabled
/sys/firmware/acpi/interrupts/gpe03: 0 disabled
/sys/firmware/acpi/interrupts/gpe04: 0 disabled
/sys/firmware/acpi/interrupts/gpe05: 0 disabled
/sys/firmware/acpi/interrupts/gpe06: 0 enabled
/sys/firmware/acpi/interrupts/gpe07: 0 enabled
/sys/firmware/acpi/interrupts/gpe08: 0 invalid
/sys/firmware/acpi/interrupts/gpe09: 0 disabled
/sys/firmware/acpi/interrupts/gpe0A: 0 invalid
/sys/firmware/acpi/interrupts/gpe0B: 0 disabled
/sys/firmware/acpi/interrupts/gpe0C: 0 disabled
/sys/firmware/acpi/interrupts/gpe0D: 0 disabled
/sys/firmware/acpi/interrupts/gpe0E: 0 disabled
/sys/firmware/acpi/interrupts/gpe0F: 0 invalid
/sys/firmware/acpi/interrupts/gpe10: 0 invalid
/sys/firmware/acpi/interrupts/gpe11: 0 invalid
/sys/firmware/acpi/interrupts/gpe12: 0 invalid
/sys/firmware/acpi/interrupts/gpe13: 0 invalid
/sys/firmware/acpi/interrupts/gpe14: 0 invalid
/sys/firmware/acpi/interrupts/gpe15: 0 enabled
/sys/firmware/acpi/interrupts/gpe16: 2541 enabled
/sys/firmware/acpi/interrupts/gpe17: 0 invalid
/sys/firmware/acpi/interrupts/gpe18: 0 invalid
/sys/firmware/acpi/interrupts/gpe19: 0 invalid
/sys/firmware/acpi/interrupts/gpe1A: 0 invalid
/sys/firmware/acpi/interrupts/gpe1B: 0 invalid
/sys/firmware/acpi/interrupts/gpe1C: 0 invalid
/sys/firmware/acpi/interrupts/gpe1D: 0 enabled
/sys/firmware/acpi/interrupts/gpe1E: 0 invalid
/sys/firmware/acpi/interrupts/gpe1F: 0 invalid
/sys/firmware/acpi/interrupts/gpe20: 0 disabled
/sys/firmware/acpi/interrupts/gpe21: 0 invalid
/sys/firmware/acpi/interrupts/gpe22: 0 invalid
/sys/firmware/acpi/interrupts/gpe23: 0 invalid
/sys/firmware/acpi/interrupts/gpe24: 0 invalid
/sys/firmware/acpi/interrupts/gpe25: 0 disabled
/sys/firmware/acpi/interrupts/gpe26: 0 invalid
/sys/firmware/acpi/interrupts/gpe27: 0 invalid
/sys/firmware/acpi/interrupts/gpe28: 0 invalid
/sys/firmware/acpi/interrupts/gpe29: 0 invalid
/sys/firmware/acpi/interrupts/gpe2A: 0 invalid
/sys/firmware/acpi/interrupts/gpe2B: 0 invalid
/sys/firmware/acpi/interrupts/gpe2C: 0 invalid
/sys/firmware/acpi/interrupts/gpe2D: 0 invalid
/sys/firmware/acpi/interrupts/gpe2E: 0 invalid
/sys/firmware/acpi/interrupts/gpe2F: 0 invalid
/sys/firmware/acpi/interrupts/gpe30: 0 invalid
/sys/firmware/acpi/interrupts/gpe31: 0 invalid
/sys/firmware/acpi/interrupts/gpe32: 0 invalid
/sys/firmware/acpi/interrupts/gpe33: 0 invalid
/sys/firmware/acpi/interrupts/gpe34: 0 invalid
/sys/firmware/acpi/interrupts/gpe35: 0 invalid
/sys/firmware/acpi/interrupts/gpe36: 0 invalid
/sys/firmware/acpi/interrupts/gpe37: 0 invalid
/sys/firmware/acpi/interrupts/gpe38: 0 invalid
/sys/firmware/acpi/interrupts/gpe39: 0 invalid
/sys/firmware/acpi/interrupts/gpe3A: 0 invalid
/sys/firmware/acpi/interrupts/gpe3B: 0 invalid
/sys/firmware/acpi/interrupts/gpe3C: 0 invalid
/sys/firmware/acpi/interrupts/gpe3D: 0 invalid
/sys/firmware/acpi/interrupts/gpe3E: 0 invalid
/sys/firmware/acpi/interrupts/gpe3F: 0 invalid
/sys/firmware/acpi/interrupts/gpe_all: 2557
/sys/firmware/acpi/interrupts/sci: 2556
/sys/firmware/acpi/interrupts/sci_not: 1
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