On 3/9/07, David Young <dyoung@pobox.com> wrote:
> The latency timer values do look wrong, but I am no longer astonished
> when PCI BIOS screws that up.  What is really extraordinary is that the
> devices' minimum grant is zero.
>
> Is the performance of your system ok?
>
> I see that you have PCI Express on your system.  Maybe the latency timer
> has a different significance on PCIe than on "legacy" PCI.

Overall performance is fine, but I do get a lot of audio dropouts
(some of which is due to lack of azalia mmap() support, but this
couldn't help) and I have a feeling it might be causing "tearing" with
graphics display.  Not sure, though.  I tried poking at the registers
with pcitweak but they didn't change.  I also use a PCIE radeon
because it performs better than my onboard 945.  I do know the 945
uses system RAM and that can cause problems, but intel actually
releases documentation for open source developers ...

I'm also wondering whether other things like back-to-back are set
properly ... It would be nice if pcictl could actually 'ctl'. ;)

Regards,

--Blair

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