[mythtv-users] using ionice on commflagging
Jerome Yuzyk
jerome at supernet.ab.ca
Wed Aug 13 17:46:56 UTC 2008
[First off, thanks very much to those who have responded to other questions
I've had. I don't feel right spraying the list with just a Thank You, and a
faulty mouse button caused me to over-delete some queued threads for
questions I asked.]
Is anyone using ionice for commflagging? I Googled and read some discussion
of it but nothing unequivocal enough to keep me from asking the list. My TV
box seems to struggle when I watch a recorded program while others are
commflagging, especially during the watermark-finding phase at the beginning
of flagging, and when more than one commflag job is running. I only hit about
50% CPU (already niced-d) during that, but I think it's disk priority that's
getting me - my machine has a single consumer-grade PATA IDE drive that I
have hdparm-ed for best performance. I get pauses in playback and skip-ahead
as the commflag seems to suck up disk attention, even though my CPU still has
headroom. Even with only 1 job running I can tell when it's in the initial
phase.
Thanks!
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