[Hardware] q: HDA Intel: 40+ wakeups/sec

[Konstantin A. Lepikhov]

Hi Michael!

Saturday 04, at 01:04:06 AM you wrote:

> 	Здравствуйте.
> Ни у кого часом нет мыслей по поводу такой картинки?
> Из нагугленного -- load snd-hda-intel with
> "power_save=10 power_save_controller=Y" options
> (https://wiki.edubuntu.org/OGerlich/Powertop),
> но ещё не успел проверить; если сработает --
> мож куда-то в дефолты?
> 
>      PowerTOP version 1.10      (C) 2007 Intel Corporation
> 
> Cn                Avg residency       P-states (frequencies)
> C0 (cpu running)        ( 1.3%)         1.84 Ghz     0.0%
> C0                0.0ms ( 0.0%)         1333 Mhz     0.0%
> C1 halt           0.0ms ( 0.0%)         1000 Mhz   100.0%
> C2                0.8ms ( 0.0%)       
> C3                5.9ms (98.7%)
> 
> Wakeups-from-idle per second : 166.7    interval: 15.0s
> Power usage (ACPI estimate): 13.8W (1.0 hours) (long term: 16.2W,/0.9h)
> 
> Top causes for wakeups:
>   27.9% ( 46.9)       <interrupt> : HDA Intel 
>   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>   20.0% ( 33.5)       <interrupt> : iwl3945 
>   10.2% ( 17.2)     seamonkey-bin : futex_wait (hrtimer_wakeup) 
>    9.0% ( 15.1)               psi : schedule_timeout (process_timeout) 
>    8.3% ( 14.0)       <interrupt> : extra timer interrupt 
>    5.4% (  9.1)      <kernel IPI> : Rescheduling interrupts
>    5.4% (  9.0)       <interrupt> : acpi
> 
> Lenovo Thinkpad X60 Tablet, 2.6.27-std-def-alt15
> 
> 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
>         Subsystem: Lenovo ThinkPad T60/R60 series
>         Kernel driver in use: HDA Intel
>         Kernel modules: snd-hda-intel
> 
> Микрофон за'mute'н, запись стоит не с него.
А на 2.6.29 проверял? http://www.unsafe.ru/lakostis/RPMS/ALTLinux/testing/

-- 
WBR et al.