[mythtv-users] Very variable CPU usage from X using bob deinterlace
junk at giantblob.com
Sun Jan 28 22:39:24 UTC 2007
Paul Bender wrote:
> junk wrote:
>> I'm experiencing very high and very variable CPU usage from X during DVB
>> playback with the 'bob' deinterlacer - sometimes X uses a few percent of
>> the CPU, sometimes it uses nearly 90 percent. I do have cpufreq turned
>> on with the ondemand governor but this is not enough to explain the
>> variation I'm seeing (as much as a hundred fold difference in load).
>> There is no apparent difference in playback quality when the load
>> changes and the load changes up and down while watching a single
>> program. Switching deinterlacing off or choosing a different
>> deinterlacing algorithm results in consistent CPU load.
>> Does anyone else see this? Is it expected behaviour? I understand that
>> bob is CPU intensive, but it seems odd that it sometimes takes
>> practically no CPU and other times it nearly swamps my machine.
>> My setup is:
>> AMD Athlon 64 3000+ (1800MHz), 2GB memory, NForce motherboard (6500,
>> I think?), using built in TV Out to PAL TV
>> Gentoo 2006.1
>> Linux 126.96.36.199, (vanilla kernel, not gentoo kernel)
>> modular X.Org server (from stable portage)
>> recent proprietory NVidia drivers (emerge ~x86)
>> recent MythTV (from SVN a few days ago)
>> 'Standard' output (not XVMC as it seems to crash X and or the front end)
>> -- jeek
> Yes, I have seen this behavior. Adding
> Option "UseEvents" "true"
> to the nvidia device section in xorg.conf solved the problem.
> mythtv-users mailing list
> mythtv-users at mythtv.org
Thanks - that seems to have fixed it.
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