Messages in this thread | | | Date | Fri, 13 Nov 2009 21:13:06 +0000 | From | Matthew Garrett <> | Subject | Re: 64-bit DMA problems with BCM4312 using b43 |
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On Fri, Nov 13, 2009 at 03:05:18PM -0600, Larry Finger wrote:
> I'm in the process of creating a patch to set the latency to 200 usec. The > default is 2000. On my fast prosessors, it should not be anything nearly that > slow. If we determine this to be the problem, then we can try tuning.
The latency is the amount of time it takes to get out of deep C states and into C0. That's a function of the processor design rather than the frequency.
-- Matthew Garrett | mjg59@srcf.ucam.org
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