Can anyone explain the difference in CPU usage between playing back a recorded show inside and outside of Mythfrontend?
As far as I can tell, Mythfrontend uses mplayer to play back. However, the CPU speed and overall performance is drastically different whether I run inside mythfrontend or not. I they are using the same mplayer binary.
>From the command line, as mythtv user, mplayer -fs -zoom -vo xv <file> ... uses about 35%-40% of CPU
>From inside mythfrontent, playback of the same recording uses from %55-%85 of CPU and averages about %65. I believe I am using the exact same mplayer command line options as used by MythTV within mythfrontent.
I have even SSH'd in and run myplayer -fs -zoom -vo xv (with display set to :0) so that mplayer pops up over top of myfrontend, to make sure it wasn't just a resource usage thing with mythfrontent. Even with mythfrontend running, top still shows only 35%-40% CPU usage when I start mplayer from the command line.
Where is the extra overhead coming from?
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