[mythtv-users] ivtv driver went nuts...

James Pifer jep at obrien-pifer.com
Fri Oct 13 01:01:22 UTC 2006


> I never thought my issues were latency-related but that's what was  
> suggested to me. I have a feeling it was my ivtv driver and perhaps  
> upgrading from 0.7.0 to 0.7.1 fixed it although I could have been  
> pegging my processor and upgrading to a 4400+ from the 3200+ fixed it  
> but I think the ivtv driver upgrade is more likely the fix. I would  
> give that a try and see how it goes.
> 
> Also, try running hdparm and check your drive access times. I don't  
> think this was my issue either since I was running on a 300GB SATA-II  
> drive with (theoretic) 3GB/sec, but it was also suggested to me that  
> it could be the problem.


I'm already running 0.7.1 and I'm having problems. I'm thinking about
stepping back and seeing if an earlier version of ivtv works out better.
I had some recordings get hosed again today. It's getting very
frustrating not really know what's causing the issue. 

The only problem with my old box was getting playback running well
enough on my FX5200/TVOut. Otherwise recordings were rock solid, which
was a great feeling. Right now I don't know whether they'll work, or
when they will break. I also added a PVR150 which the old box didn't
have, but I don't think that is a real problem. 

Here's my hdparm numbers, not sure if they are good or not. 

# hdparm -tT /dev/hda

/dev/hda:
 Timing cached reads:   1332 MB in  2.00 seconds = 665.65 MB/sec
 Timing buffered disk reads:  144 MB in  3.02 seconds =  47.64 MB/sec

I think my hardware is plenty, except for the RAM. Not sure if adding
another 512 (up to a gig) would be good or not. I see very little swap
being used. Otherwise it's dual Xeon 1.8 ghz. I have a hard time
believing that's not more than enough. 

James



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