It seems something happened in this version regarding the export job, after upgrading from 2.11.31 to 2.12.4.
Anyone has experienced this speed degradation! I have tested it with previous DCPs which I had good fps export in 2.11.31, about 9 fps but now with ver 2.12.4, I got 3 fps with the same DCP.
Solomon
Very Slow Export Job in DOM ver 2.12.4
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rahmani
- Posts: 86
- Joined: Sat Jun 17, 2017 1:24 pm
Re: Very Slow Export Job in DOM ver 2.12.4
Upgraded to ver 2.13.18 the result is the same even slower than before about 2.7 fps!!
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Carsten
- Posts: 2665
- Joined: Tue Apr 15, 2014 9:11 pm
- Location: Germany
Re: Very Slow Export Job in DOM ver 2.12.4
It's true, it seems something went wrong with the multithreading. With mp4, 2.11.17 occupies all logical cores of my 4coreHT notebook to 100%, while 2.12.4 and 2.13.16 only load three to four cores to max 50-60%. ProRes is a little bit better.
Multithreading is still okay in 2.11.78...and 2.12.2...and 2.12.3 - so, it seems it left us from 2.12.3 to 2.12.4
Now, in 2.12.4, for mp4/h.264, I only see three to four threads/cores being used, while with ProRes, I see all eight logical cores being used, but only with low loads each. I understand this is FFMPEG and can't easily be tuned for best performance with every codec. But for mp4/h.264, it definitely used to be twice as fast between 2.11.17 and 2.12.3
I'll put it up on Mantis...
- Carsten
Multithreading is still okay in 2.11.78...and 2.12.2...and 2.12.3 - so, it seems it left us from 2.12.3 to 2.12.4
Now, in 2.12.4, for mp4/h.264, I only see three to four threads/cores being used, while with ProRes, I see all eight logical cores being used, but only with low loads each. I understand this is FFMPEG and can't easily be tuned for best performance with every codec. But for mp4/h.264, it definitely used to be twice as fast between 2.11.17 and 2.12.3
I'll put it up on Mantis...
- Carsten