[mythtv-users] CPU load when watching TV
mythtv at rodsbooks.com
Sun Dec 13 00:00:29 UTC 2009
On Saturday 12 December 2009 06:23:52 pm Brian Wood wrote:
> Top gives you an average. I've seen systems where top says 60% or so that
> were actually hitting peaks that caused playback problems.
True -- but it's also very useful in identifying what specific processes are
chewing up CPU time. In my experience, when playing back video and nothing
else, this should be the mythfrontend process, with X coming in second, and
others chewing up negligible amounts of CPU time. If the system is
transcoding, commflagging, or doing something else during playback, the
relevant processes may be up there, too.
> I used to have the problems with X that you mentioned, I forget what the
> fix was.
For me, it was to add the following line to the video card's "Device" section
Option "UseEvents" "True"
This was with an nVidia card using the nVidia proprietary drivers. Such fixes
tend to be very card-specific, though. I don't know offhand if this option
applies to other video cards. The MythTV wiki has notes for some of the
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