On Thu, Jan 12, 2006 at 06:03:15PM -0500, Dave Jones wrote:
> On Thu, Jan 12, 2006 at 05:11:33PM -0500, Adam Belay wrote:
> > It might be possible to do even a little better. Currently, I'm developing a
> > new ACPI idle policy that tries to take advantage of the long time we may
> > be able to spend in a C3 state.
>
> As soon as that usb timer hits (every 250ms iirc) you'll bounce back out
> of any low-power state you may be in. It's a bit craptastic that we do
> this, even if we don't have any USB devices plugged in.
>
> Dave
I agree that's annoying, but isn't 250ms not often enough to make any
significant difference as far as power management is concerned?
Generally some bus master activity will come along in a shorter time frame,
causing a jump out of C3.
Thanks,
Adam
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