On 8/26/07, Piers Kittel <[EMAIL PROTECTED]> wrote:
> Top causes for wakeups:
>    42.4% (101.6)       <interrupt> : yenta, uhci_hcd:usb1,
> ehci_hcd:usb4, cx88[0], cx88[0], eth1
>    42.2% (101.1)       <interrupt> : yenta, uhci_hcd:usb2,
> uhci_hcd:usb3, VIA8233, ohci1394, cx88[1], cx88[1]

You can unload the usb modules (uhci_hcd) if they are compiled as
modules to keep them from generating any interrupts. But I suspect
that most of these wakeups are caused by your cx88 capture cards. Were
they capturing at the time?

>     8.3% ( 20.0)       mythbackend : futex_wait (hrtimer_wakeup)

MythTV is also a big offender. But luckily you aren't running
mythfrontend or mythwelcome, they generate a 1-2 hundred wakeups each.
mythbackend also wakes up 100 times a second for me, so you are
actually doing well, there! What version of MythTV?

-Dave

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