[Openchrome-users] cpu usage on SP8000

[Thomas Hellstrom]

> Udo van den Heuvel wrote:
>> Hello,
>>
>> I am busy setting up a VIA SP8000 as a PVR.
>> Today I tested DVD playback with xine and noted that the CPU usage is
>> quite high, picture looks OK for now.
>>
>> The box is running FC4 and I am using the xorg RPMs from
>> http://washington.kelkoo.net/epia/. (thanks for these!)
>> The kernel has AGP support, DRI support with VIA driver compiled in. All
>> stock 2.6.15.2 kernel.
>> In /var/log/Xorg.0.log I see all drivers being initialised OK and AGP
>> being used. Xine is set for xvmc and with lsof I see
>> /usr/X11R6/lib/libviaXvMCPro.so.1.0 being used.
>>
>> Speeds:
>>
>> (II) VIA(0): Benchmarking video copy. Less is better.
>> (--) VIA(0): Timed   libc YUV420 copy... 3658309. Throughput: 129.8
>> MiB/s.
>> (--) VIA(0): Timed kernel YUV420 copy... 3705228. Throughput: 128.1
>> MiB/s.
>> (--) VIA(0): Timed    SSE YUV420 copy... 2253985. Throughput: 210.6
>> MiB/s.
>> (--) VIA(0): Timed    MMX YUV420 copy... 3967807. Throughput: 119.6
>> MiB/s.
>> (--) VIA(0): Ditch 3DNow! YUV420 copy... Not supported by CPU.
>> (--) VIA(0): Timed   MMX2 YUV420 copy... 2285039. Throughput: 207.8
>> MiB/s.
>>
>> I see no errors in the log. Still xine uses 80+% of CPU.
>>

Tony had a similar problem some months ago. Then magically it went away.
Could you play the file with

Xine -V xxmc -A null --verbose=2

And post the compressed log.
If hardware decoding is working, xine should be below 10% with the above
command.

/Thomas