Re: Pb with simultaneous SATA and ALSA I/O
From: Thierry Vignaud
Date: Tue Sep 26 2006 - 10:30:01 EST
Lee Revell <rlrevell@xxxxxxxxxxx> writes:
> > Well i agree with the suggestion of trying a different PCI slot
> > for the sb live. There is so much onboard stuff sharing
> > interrupts on those boards that you might have problems because of
> > that. Creative cards are not very good at dealing with anything
> > other than ideal conditions from what I have gathered over the
> > years. The manual for the board will tell you which IRQ goes to
> > which slot, and I guess you want to avoid using a slot that shares
> > with the SATA controller.
> It might not be interrupt related, it could be DMA starvation. This
> has been observed with some SATA controllers while testing the -rt
> patches. The symptom is that the latency traces show the machine
> going in "slow motion".
with the -rt patch, high resolution timer + dyn helps too in going in
deep slow mode.
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