[mythtv-users] High frontend CPU load playing DVB-T radio recordings

John Pilkington J.Pilk at tesco.net
Sun Mar 9 20:36:18 UTC 2014

On 09/03/14 15:00, John Pilkington wrote:
> mythfrontend version: fixes/0.27 [v0.27-178-g6b14852] www.mythtv.org F19
> x86_64 local build based on modified rpmfusion specfile
> I don't usually play in-progress or unprocessed radio recordings, but
> atop is now showing 98% CPU load, mostly as 'idle'.  No visualiser
> active, blank screen.
> Playing an SD TV recording shows load typically around 25%.  nVidia
> 304.119, GeForce 7500LE, no VDPAU. The audio sounds fine, and keyboard
> response is quick.
> I had started this with the intention of trying the GOOM visualiser,
> which still gets disabled, in frontend playback, after a few seconds.
> Is the CPU load effect likely to be fixed by today's 'low bitrate'
> commit c64141b0c0b7118ee28be2441374727a1af7c44c ?
> John P.

FWIW the build from the same tarball for the 
SL6.5/KDE-unstable/elrepo-kernel/i686 laptop has CPU load around 10% 
during radio playback - much more reasonable.  Intel GPU.

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