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uterrorista

Member

Registered: 2008-02-13

Posts: 26

Website

Config my system.

I have some problems with kernel vs et131x (Ethernet card)

# powertop

Top causes for wakeups:
  38.5% (250.0)          ifconfig : et131x_open (et131x_error_timer_handler) 
  21.8% (141.9)       <interrupt> : uhci_hcd:usb3 
  13.2% ( 85.8)       <interrupt> : ohci1394, yenta, sdhci:slot0, tifm_7xx1, i91
   6.2% ( 40.6)       <interrupt> : uhci_hcd:usb2, ipw3945 
   4.9% ( 32.1)            python : schedule_timeout (process_timeout) 
   3.8% ( 25.0)      S20powernowd : queue_delayed_work_on (delayed_work_timer_fn

so i uninstall it (et131x)

now

# powertop

     PowerTOP version 1.9       (C) 2007 Intel Corporation

Cn                Avg residency       P-states (frequencies)
C0 (cpu running)        (13.7%)
C1                0.0ms ( 0.0%)
C2                0.4ms (86.3%)



Wakeups-from-idle per second : 2458.7   interval: 10.0s
no ACPI power usage estimate available

Top causes for wakeups:
  64.1% (649.0)      <kernel IPI> : Rescheduling interrupts 
   9.2% ( 92.9)       <interrupt> : extra timer interrupt 
   7.3% ( 74.4)   USB device  3-2 : Optical Mouse (Genius      ) 
   6.7% ( 67.5)       <interrupt> : uhci_hcd:usb3 
   2.1% ( 21.7)       <interrupt> : iwl3945, uhci_hcd:usb2 
   2.0% ( 20.7)            python : schedule_timeout (process_timeout) 
   1.5% ( 15.7)              Xorg : do_setitimer (it_real_fn) 
   1.3% ( 13.4)       firefox-bin : futex_wait (hrtimer_wakeup) 
   1.2% ( 12.4)            gui.py : schedule_timeout (process_timeout) 
   1.1% ( 10.7)     mixer_applet2 : schedule_timeout (process_timeout) 
   1.0% (  9.9)         daemon.py : schedule_timeout (process_timeout)
   0.6% (  6.0)      <kernel IPI> : TLB shootdowns
   0.4% (  4.0)   <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)
   0.2% (  2.0)     <kernel core> : clocksource_register (clocksource_watchdog)
   0.2% (  1.7)       <interrupt> : libata
   0.1% (  1.4)       <interrupt> : PS/2 keyboard/mouse/touchpad
   0.1% (  1.2)              Xorg : schedule_timeout (process_timeout)
   0.1% (  1.2)    cpufreq-applet : schedule_timeout (process_timeout)
   0.1% (  1.0)    wpa_supplicant : schedule_timeout (process_timeout)
   0.1% (  0.7)          nautilus : schedule_timeout (process_timeout)
   0.1% (  0.6)       gnome-panel : schedule_timeout (process_timeout)
   0.1% (  0.6)    gnome-terminal : schedule_timeout (process_timeout)
   0.0% (  0.5)   <kernel module> : neigh_table_init_no_netlink (neigh_periodic_timer)

Suggestion: Disable the unused bluetooth interface with the following command:
  hciconfig hci0 down ; rmmod hci_usb
Bluetooth is a radio and consumes quite some power, and keeps USB busy as well.

this:

<kernel IPI> : Rescheduling interrupts

is the mount active process. i don't think this is normal, because in my last distro (Ubuntu) this didn't happen..
Can someone give me some kind of explication..

evdvelde

Member

From: Antwerp - BELGIUM

Registered: 2005-12-02

Posts: 57

Re: Config my system.

I have the same problem with different network card (using sky2 module):

Top causes for wakeups:
  48.1% (911.4)      <kernel IPI> : Rescheduling interrupts

uastasi

Member

From: Salento - Italy

Registered: 2007-11-27

Posts: 247

Re: Config my system.

That's for me too:

24,9% (250,0)      <kernel IPI> : Rescheduling interrupts

---

Till the last battle, till the last bottle.
aur - twitter

Reasons

Member

From: Washington

Registered: 2007-11-04

Posts: 572

Re: Config my system.

It will always be the most as it's a current problem. There is a kernel patch to make it less frequent that I just did and it's working pretty well.
http://bbs.archlinux.org/viewtopic.php?id=44687