2.6.24-rc1 / powertop-svn: See which USB devices causes wakeups?
Peter Ganzhorn
peter.ganzhorn at googlemail.com
Mon Oct 29 07:29:50 PDT 2007
Here you go, I can't see anything else related to USB...but maybe you
can read something out of this:
31.2% ( 20.0) <kernel core> : usb_hcd_poll_rh_status (rh_timer_func)
18.7% ( 12.0) <interrupt> : iwl4965
15.6% ( 10.0) <kernel core> : ehci_work (ehci_watchdog)
9.8% ( 6.3) <kernel IPI> : Rescheduling interrupts
3.9% ( 2.5) Xorg : do_setitimer (it_real_fn)
3.1% ( 2.0) xfsbufd : schedule_timeout (process_timeout)
2.5% ( 1.6) wpa_supplicant : schedule_timeout (process_timeout)
2.4% ( 1.5) fluxbox : schedule_timeout (process_timeout)
1.6% ( 1.0) Xorg : schedule_timeout (process_timeout)
1.6% ( 1.0) mpd : schedule_timeout (process_timeout)
1.0% ( 0.7) firefox-bin : futex_wait (hrtimer_wakeup)
0.7% ( 0.5) <interrupt> : libata
0.7% ( 0.5) <kernel IPI> : function call interrupts
0.7% ( 0.5) iwl4965 : ieee80211_sta_work (ieee80211_sta_timer)
0.7% ( 0.5) conky : schedule_timeout (process_timeout)
0.7% ( 0.5) conky : futex_wait (hrtimer_wakeup)
0.7% ( 0.5) conky : sk_reset_timer (tcp_delack_timer)
0.7% ( 0.5) mpd : sk_reset_timer (tcp_delack_timer)
0.7% ( 0.5) conky : sk_reset_timer (tcp_write_timer)
Thanks!
Peter
Arjan van de Ven wrote:
> Peter Ganzhorn wrote:
>> Hi,
>>
>> with 2.6.24-rc1 and powertop from svn (2007-10-28) I still can't see
>> which USB devices keeps producing wakeups:
>>
>> 49.3% ( 20.0) <kernel core> : usb_hcd_poll_rh_status (rh_timer_func)
>>
>> I think Arjan said that with newest powertop and 2.6.24-rc* this
>> should be possible because some patch to add this functionality was
>> merged into 2.6.24.
>> So why can't I see which USB device is causing the wakeups or what am
>> I doing wrong???
>>
>
> can you give like the top 10? Maybe it's there anyway
> the cause of USB stuff is listed separately, and only for devices, not
> for the controller..
>
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