Arch Linux

graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,597

Website

powertop on HP elitebook doesn't show power consumption [solved]

Just put Arch on my elitebook and was wondering if I need to enable something to get a read on my "ACPI power usage estimate"?

     PowerTOP version 1.11      (C) 2007 Intel Corporation

Cn                Avg residency       P-states (frequencies)
C0 (cpu running)        (34.2%)         2.54 Ghz    80.9%
polling           0.4ms ( 0.1%)         2.54 Ghz    15.3%
C1 mwait          0.3ms (17.1%)         1.60 Ghz     3.8%
C4 mwait          0.9ms (48.7%)          800 Mhz     0.0%


Wakeups-from-idle per second : 1073.5   interval: 10.0s
no ACPI power usage estimate available

Top causes for wakeups:
  31.4% (553.3)   USB device  2-6 : DataTraveler 2.0 (Kingston) 
  27.8% (488.8)       <interrupt> : ehci_hcd:usb2, uhci_hcd:usb6 
  24.6% (432.9)     <kernel core> : hrtimer_start_range_ns (tick_sched_timer) 
   7.7% (135.3)      <kernel IPI> : Rescheduling interrupts 
   1.8% ( 31.7)   USB device  7-2 : Microsoft IntelliMouse® Explorer (Microsoft) 
   1.7% ( 29.8)       <interrupt> : extra timer interrupt 

Suggestion: Disable 'hal' from polling your cdrom with:
hal-disable-polling --device /dev/cdrom 'hal' is the component that auto-opens a
window if you plug in a CD but disables SATA power saving from kicking in.

Last edited by graysky (2010-07-04 03:04:07)

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CPU-optimized Linux-ck packages @ Repo-ck  • AUR packages • Zsh and other configs

foutrelis

Developer

From: Athens, Greece

Registered: 2008-07-28

Posts: 705

Website

Re: powertop on HP elitebook doesn't show power consumption [solved]

Maybe try running it on battery.

graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,597

Website

Re: powertop on HP elitebook doesn't show power consumption [solved]

Good call!  Working now:

Cn                Avg residency       P-states (frequencies)
C0 (cpu running)        ( 1.9%)         2.54 Ghz     0.0%
C0                0.0ms ( 0.0%)         2.54 Ghz    15.1%
C1 mwait          0.0ms ( 0.0%)         1.60 Ghz    16.6%
C2 mwait          0.7ms ( 2.2%)          800 Mhz    68.3%
C6 mwait          4.3ms (95.9%)

Wakeups-from-idle per second : 258.3    interval: 3.0s
Power usage (ACPI estimate): 24.8W (2.8 hours)

Top causes for wakeups:
  32.3% (105.0)       <interrupt> : extra timer interrupt 
  28.5% ( 92.7)     <kernel core> : hrtimer_start_range_ns (tick_sched_timer) 
   8.2% ( 26.7)       <interrupt> : ehci_hcd:usb2, uhci_hcd:usb6 
   8.0% ( 26.0)           firefox : hrtimer_start_range_ns (hrtimer_wakeup) 
   7.2% ( 23.3)   USB device  2-6 : DataTraveler 2.0 (Kingston) 
   4.3% ( 14.0)       <interrupt> : iwlagn

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CPU-optimized Linux-ck packages @ Repo-ck  • AUR packages • Zsh and other configs

takedown

Member

From: Argentina

Registered: 2008-08-31

Posts: 219

Re: powertop on HP elitebook doesn't show power consumption [solved]

plz mark it as solved