[mythtv-users] Extremely High CPU with Live TV - Myth 0.17

Alexander Varakin avarakin at optonline.net
Fri Mar 25 02:43:29 UTC 2005


Hmm, something is wrong with your setup. I am getting similar numbers on my P3 
677Mhz mythtv server. Do you have xv enabled?

On Thursday 24 March 2005 06:28, Jeff_Logica wrote:
> I have been following the forum for some time, and have been very
> interested in peoples cpu loads.  I have searched the forum and triedgetting 
> everything listed with no luck.  I have a combined Frontend/Backend system.
>  I was able to watch Picture in Picture with some chop back in Myth 0.15,
> but it has got progressivly worse with each upgrade.  I believe, based on
> other peoples results, that I have messed a setting up, but for the life of
> me can not find which one(s).  I have not yet attempted to try watching HD
> TV, this is all based on SD Digital (Australia).  I am really interested in
> getting this sorted,as I'm hoping to build an XBox Frontend over the next
> few weeks, but obviously don't want it to suffer the same problems.  I have
> tried the different DeInterlace, etc settings to no avail.
>
> The CPU Load, as shown by kcpuload is
> When idle  0%
> Recording 1 Card 2-3%
> Recording 2 Card 4-6%
> Watching Live/Record TV 86-90%
> Watching Live TV + PIP 93-96% (Very stuttery)
> Watching Live TV + Recording 90-96%
> Watching Video (Mostly DivX 5) (MythVideo calling MPlayer) 10-19%
>
> This is a standard (Pentium Pro) compile of myth and associated bits, based
> on the comments in the myth documentation (Installing and using MythTV,
> section 5.1) I have not compiled optimised for the Athlon XP, since the
> documentation seems to indicate that it doesn't optimize correctly.
>
> I am just using the default Myth settings for the recording, which I think
> is RTJpeg and MP3.
>
> Box Specs:
> Myth 0.17
> Mandrake 10.1 - Kernel 2.6.3-19mdk, Kde 3.2
> 2 VisionPlus VisionDTV DVB Cards (Bt878)
> 3 IDE HDD
> - hda - Seagate 80GB - OS + MythMusic - Primary Master
> - hdb - Seagate 200GB - MythVideo      - Primary Slave
> - hdc - Western Digital 200GB - MythTV - Ring Buffer and Recorded TV -
> Secondary Master
> Graphics - GeForce FX 5200
> Memory - 756MB
> CPU - AMD Athlon XP 1600+
> Motherboard - Asus A7N266 VM
> Sound - On Board
>
> Any help in getting the CPU load down so I can atleast wacth PIP would be
> very much appreciated.  I am, based on others mileage, assuming that this
> is possible.
>
> Thanks, (Sorry for the long post)
> Jeff.


More information about the mythtv-users mailing list