OS Interrupted
Peter Schultz
pmes at bis.midco.net
Thu May 6 07:43:36 PDT 2004
Nate Lawson wrote:
> On Mon, 19 Apr 2004, Peter Schultz wrote:
>
>>Nate Lawson wrote:
>>
>>>On Mon, 19 Apr 2004, Peter Schultz wrote:
>>>
>>>
>>>>ACPI is working again on my machine but there's a terrible amount of
>>>>latency introduced when using it. The mouse cursor is really jerky and
>>>>realaudio streams will constantly skip where they never do otherwise.
>>>>
>>>>Are there ACPI tweaks I can try to see if this can be eliminated?
>>>
>>>set hw.acpi.force_sci_lo=1 at the loader prompt.
>>
>>This isn't interrupt storm bad, but it makes listening to
>>music very annoying and the mouse cursor really jumpy.
>
>
> So you're saying vmstat -i doesn't show anything out of the ordinary? How
> often does the jumpiness happen? If it's once every 30 seconds, it could
> be thermal polling. If it's constantly, it's like a GPE issue or
> interrupt storm. You could stick a printf in acpi_ec.c:EcGpeQueryHandler
> to see if you're getting a lot of GPEs. If that's the case, it will
> likely be solved on the next import. You can work around this by removing
> the line in acpi.c that sets Gbl*Gpe* to FALSE.
>
It is the thermal poll event which causes my interruptions. I changed
the interval from 10 to 100 so at least I don't have skips so often. Is
there a way to make this more cooperative with the rest of the system?
Thanks,
Pete...
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