I've been having sporadic problems with mvpmc skipping and stuttering  
for the past several months, and finally took some time to investigate.

I've found that the maximum throughput for NFS mounted volumes  
dropped significantly for me, from about 13mb/s to 8.5mb/s, when  
updating from v0.3.0 to 0.3.1. Upgrading to 0.3.2 and then 0.3.3  
didn't improve performance any.

Unfortunately, I also updated MythTV from 0.19 to 0.20 when 0.3.1  
came out, so I can't go back.

I've been using the nfsmount.sh script to mount my nfs volumes, but  
tried manually setting the rsize to 1024, 2048, or 4096 without any  
improvement. I've also tried the --rtwin 4096 flag on the mvpmc  
executable without any improvement.

I've got tons of DVD's ripped to mpeg2 streams with mp2 audio that  
used to play flawlessly. When I watch the buffers during playback, I  
see them empty very quickly, and never seem to fill back up, even  
when the throughput drops well below 8.5mb/s.

MythTV streams seem to be OK if I use the myth protocol, but mounting  
the recordings directory via NFS runs into the same problem.

Are there any other things I can try adjusting to get a speed boost?  
Is 8.5mb/s typical with the current version of mvpmc?

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