[mythtv-users] SOLVED System Load/Performance Question

[Bob Cottingham]

On 2/24/06, mrwester <mrwester at gmail.com> wrote:
> > This sounded like it could be related to problems I've been seeing
> > with ivtv corruption and prebuffering pauses, however with my nforce2
> > chipset I can't adjust the pci latency for the IDE, audio or a few
> > other controllers, which are all set to 0.  I don't have a problem
> > changing the latency for the build-in video (which was set to 248) and
> > the ivtv cards.  I found this to be the case for both nforce2 based
> > systems I tried.  I didn't find anything through google that really
> > addressed this issue.  Does anyone else see this?  Is this a potential
> > issue?  Is there any reason to have the video card latency so high?  I
> > lowered the video latency and I'm going to see what effect it has on
> > performance.
>
> Hi Bob-
>
> Did you come to any  resolution with this?  I've got an nforce2 system as
> well (chaintech) , and I cannot adjust pci latency for IDE either...  I see
> a systematic stuttering (1 every 1.5 seconds or so?) of CNN tickertape with
> my XP2900, FX5200 system, that I can't help think it has something to do
> with PCI latency.  I get occasional glitches in HDTV recordings as well, for
> example if someone accesses mythweb while the recording is happening.  I
> think this is all related, but like you, I'm not finding any answers by
> google.  Thanks for any insight,
>
Unfortunately, I haven't found anything else out.  I'm getting
occasional IOBOUND errors and ivtv ENC OVERFLOW errors and more
frequent prebuffering pauses, but don't know what's causing them all
or if adjusting PCI latency would even have an effect.

Sorry,
Bob