[mythtv-users] powertop info: what can we fix?

Udo van den Heuvel udovdh at xs4all.nl
Sun Jul 1 17:35:03 UTC 2007


Powertop tells me:

Top causes for wakeups:
    34.3% (100.0)       mythbackend : do_nanosleep (hrtimer_wakeup)
    31.8% ( 92.8)       kdvb-ca-0:0 : schedule_timeout (process_timeout)
    17.6% ( 51.2)       <interrupt> : saa7146 (0), via at pci:0000:01:00.0
     5.8% ( 17.0)       mythbackend : schedule_timeout (process_timeout)
     3.4% ( 10.0)   at-spi-registry : schedule_timeout (process_timeout)
     3.4% ( 10.0)              Xorg : do_setitimer (it_real_fn)
     0.7% (  2.0)     <kernel core> : clockksource_register(clocksource
(etc)

So mythtv is causing a lot of wakeups.
How can I tweak this?

I don't have a chipcard attached to my ca-slot, so I can go without the
kdvb-ca-etc; how can I fix this?

Any ideas?

Udo


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