[mythtv-users] mplayer -dumpstream better than myth record

Jake jakeisawake at gmail.com
Fri Sep 14 18:46:59 UTC 2007


> > Do you commflag your recordings?  If so, there is basically double the
> > disk I/O happening.  Also, there is more going on when myth is
> > recording (DB writes, etc) which also increase the I/O over what
> > mplayer is doing with dumpstream.  Does your database share the same
> > disk as your recordings?
>
> Interesting idea about the IO. I doubt it though. Here's why: I am not
> doing commflag on my records (or any other processing). NBC is fine at
> broadcasts in 1920x1080i and ~100Mb/min. FOX, which gives me mild
> problems, broadcasts 1280x720p and 110MB/min. The station that gives me
> the most problems, is MNT, which broadcasts at 1920x1080i and ~95Mb/min.
> So I'm not seeing a correlation with rmy ecording problems and how much
> it saves to the disk. I temporarily moved the recordings directory to a
> different hard drive from the database, but it made no difference. Any
> more ideas?
>
> Thanks,
>

what db engine is mysql using?  personally i see much better
performance on the innoDB engine rather than the MyISAM engine so that
might help...not really sure since i'm not doing hd here though we do
have six analog tuners in one big backend using pvr-500's.


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