reducing power usage of Fedora - how you can help!

Nicolas Mailhot nicolas.mailhot at laposte.net
Sun Aug 12 11:23:04 UTC 2007


Le jeudi 09 août 2007 à 12:06 -0400, Bill Nottingham a écrit :

> 4) Report the results. You can add reports here, on #fedora-devel,
>    or to the upstream powertop community at power at bughost.org or
>    #powertop on irc.oftc.net.

Idle:

Wakeups-from-idle per second : 375,3
Top causes for wakeups:
  32,9% (101,6)       <interrupt> : ohci_hcd:usb1, eth0 
  22,7% ( 70,2)       <interrupt> : ehci_hcd:usb2 
  13,2% ( 40,8)   at-spi-registry : schedule_timeout (process_timeout) 
   9,7% ( 29,8)              Xorg : do_setitimer (it_real_fn) 
   4,5% ( 13,8)     mixer_applet2 : schedule_timeout (process_timeout) 
   3,2% ( 10,0)     <kernel core> : ehci_work (ehci_watchdog) 
   3,2% ( 10,0)   <kernel module> : sky2_probe (sky2_idle) 
   1,6% (  5,0)       <interrupt> : sata_sil, firewire_ohci 
   1,5% (  4,6)       <interrupt> : sata_nv 
   1,0% (  3,0)        imap-login : schedule_timeout (process_timeout) 
   0,8% (  2,4)    gnome-terminal : schedule_timeout (process_timeout) 
   0,8% (  2,4)   multiload-apple : schedule_timeout (process_timeout) 
   0,6% (  2,0)     <kernel core> : queue_delayed_work_on
(delayed_work_timer_fn) 
   0,3% (  1,0)             httpd : schedule_timeout (process_timeout) 
   0,3% (  1,0)           dovecot : schedule_timeout (process_timeout) 
   0,3% (  1,0)            dhcdbd : schedule_timeout (process_timeout) 
   0,3% (  1,0)       firefox-bin : futex_wait (hrtimer_wakeup) 
   0,3% (  1,0)     <kernel core> : neigh_table_init_no_netlink
(neigh_periodic_timer) 
   0,3% (  1,0)    cpufreq-applet : schedule_timeout (process_timeout) 
   0,3% (  0,8)       S06cpuspeed : queue_delayed_work_on
(delayed_work_timer_fn) 
   0,2% (  0,6)             spamd : schedule_timeout (process_timeout) 
   0,2% (  0,6)      dovecot-auth : schedule_timeout (process_timeout) 
   0,1% (  0,4)              Xorg : schedule_timeout (process_timeout) 
   0,1% (  0,4)     <kernel core> : raid1_end_write_request
(md_safemode_timeout) 
   0,1% (  0,4)        gam_server : schedule_timeout (process_timeout) 
   0,1% (  0,4)            pidgin : schedule_timeout (process_timeout) 
   0,1% (  0,4)            pidgin : sk_reset_timer (tcp_write_timer) 
   0,1% (  0,4)    sensors-applet : schedule_timeout (process_timeout) 
   0,1% (  0,4)          nautilus : schedule_timeout (process_timeout) 
   0,1% (  0,4)       gnome-panel : schedule_timeout (process_timeout) 
   0,1% (  0,2)     <kernel core> : input_event (input_repeat_key) 
   0,1% (  0,2)     <kernel core> : page_writeback_init (wb_timer_fn) 
   0,1% (  0,2)              init : schedule_timeout (process_timeout) 
   0,1% (  0,2)           amavisd : schedule_timeout (process_timeout) 
   0,1% (  0,2)        rc.sysinit : start_this_handle (commit_timeout) 
   0,1% (  0,2)                ip : __netdev_watchdog_up (dev_watchdog) 
   0,1% (  0,2)     <kernel core> : ip_rt_init (rt_check_expire) 
   0,1% (  0,2)             cupsd : inet_twsk_schedule
(inet_twdr_hangman) 
   0,1% (  0,2)    mapping-daemon : schedule_timeout (process_timeout)


With ivtv:

Wakeups-from-idle per second : 902,6
Top causes for wakeups:
  21,0% (102,2)       <interrupt> : ohci_hcd:usb1, eth0 
  20,5% (100,0)       <interrupt> : EMU10K1 
  11,2% ( 54,6)       <interrupt> : ehci_hcd:usb2 
  10,8% ( 52,8)       <interrupt> : ivtv0 
   8,0% ( 39,0)              Xorg : do_setitimer (it_real_fn) 
   6,5% ( 31,6)   at-spi-registry : schedule_timeout (process_timeout) 
   4,8% ( 23,2)             totem : futex_wait (hrtimer_wakeup) 
   3,9% ( 18,8)             totem : do_nanosleep (hrtimer_wakeup) 
   2,7% ( 13,0)     mixer_applet2 : schedule_timeout (process_timeout) 
   2,1% ( 10,0)   <kernel module> : sky2_probe (sky2_idle) 
   2,1% ( 10,0)     <kernel core> : ehci_work (ehci_watchdog) 
   1,1% (  5,2)             totem : schedule_timeout (process_timeout) 
   0,9% (  4,4)   gnome-screensav : schedule_timeout (process_timeout) 
   0,9% (  4,2)        imap-login : schedule_timeout (process_timeout) 
   0,6% (  2,8)   multiload-apple : schedule_timeout (process_timeout) 
   0,4% (  2,0)     <kernel core> : queue_delayed_work_on (delayed_work_timer_fn) 
   0,3% (  1,4)    gnome-terminal : schedule_timeout (process_timeout) 
   0,2% (  1,0)    cpufreq-applet : schedule_timeout (process_timeout) 
   0,2% (  1,0)             httpd : schedule_timeout (process_timeout) 
   0,2% (  1,0)           dovecot : schedule_timeout (process_timeout) 
   0,2% (  1,0)      dovecot-auth : schedule_timeout (process_timeout) 
   0,2% (  1,0)     <kernel core> : neigh_table_init_no_netlink (neigh_periodic_timer) 
   0,2% (  1,0)            dhcdbd : schedule_timeout (process_timeout) 
   0,2% (  0,8)       S06cpuspeed : queue_delayed_work_on (delayed_work_timer_fn) 
   0,2% (  0,8)       firefox-bin : futex_wait (hrtimer_wakeup) 
   0,1% (  0,6)             spamd : schedule_timeout (process_timeout) 
   0,1% (  0,4)            pidgin : schedule_timeout (process_timeout) 
   0,1% (  0,4)              imap : schedule_timeout (process_timeout) 
   0,1% (  0,4)    sensors-applet : schedule_timeout (process_timeout) 
   0,0% (  0,2)     <kernel core> : input_event (input_repeat_key) 
   0,0% (  0,2)              Xorg : schedule_timeout (process_timeout) 
   0,0% (  0,2)            pidgin : sk_reset_timer (tcp_write_timer) 
   0,0% (  0,2)            auditd : schedule_timeout (process_timeout) 
   0,0% (  0,2)       gnome-panel : schedule_timeout (process_timeout) 
   0,0% (  0,2)        gam_server : schedule_timeout (process_timeout) 
   0,0% (  0,2)             cupsd : inet_twsk_schedule (inet_twdr_hangman) 
   0,0% (  0,2)    mapping-daemon : schedule_timeout (process_timeout) 
   0,0% (  0,2)      clock-applet : schedule_timeout (process_timeout) 
   0,0% (  0,2)     <kernel core> : page_writeback_init (wb_timer_fn) 
   0,0% (  0,2)          nautilus : schedule_timeout (process_timeout) 
   0,0% (  0,2)              init : schedule_timeout (process_timeout) 
   0,0% (  0,2)           amavisd : schedule_timeout (process_timeout) 
   0,0% (  0,2)                ip : __netdev_watchdog_up (dev_watchdog) 
   0,0% (  0,2)             crond : do_nanosleep (hrtimer_wakeup) 
   0,0% (  0,2)          metacity : schedule_timeout (process_timeout) 

-- 
Nicolas Mailhot
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