Extremely Slow Export

[Andy Edwards]

Lee,

Lots of options to try and speed up your exports. What type of machine / OS are you using? Do you have a CUDA enabled if you have an NVidia card or are you using AMD and Open CL? What types of drives are you using… SSD’s, Spinning? Did you flip all your footage to ProRes422, assign your preview files to be ProRes422 as well? Did you check the export menu to use previews.

Post back some answers to my questions and we can try to help you speed this up.

Andy Edwards

[Lee Schneider]

Thank you, thank you, thank you! I knew it was something as simple as checking a box, but didn’t notice the “use previews” box. It took my hour long export down to under 30 seconds. lol

So, here’s another question. I can’t find an option to render in RGB or YUV like there was in FCP. I’m getting a very slight color shift between rendered and non rendered media and in FCP, switching it from RGB to YUV solved that issue. I didn’t know if there was something similar in PPro that I could try.

Thank you again VERY MUCH for the help.

Lee

[Andy Edwards]

The shift might be from not setting your sequence previews to the correct setting. If there is a slight mis-match in your settings, the shift can happen when rendering. Are you doing ProRes all the way through to export or are you exporting to H.264 or some other codec? You could also start fresh with a sequence that is set to ProRes 422, previews are set to QuickTime and ProRes codec, then create a export preset for ProRes422 vs. using “match sequence” box.

Are you re-importing your export to cheek this in Premiere or playing back with the QuickTime player on the desktop? If in Premiere, make sure your monitor is set to Full Quality as anything lower can show shifts in color.

Andy Edwards

[Lee Schneider]

Andy,

Thank you for taking your time to help. I was actually talking about in the timeline. I can color correct a clip and then it shifts in the timeline after rendering. I experimented by taking 2 heavily effected frames in the timeline (color correction, sharpen, Film Convert) and then cutting them. I’ll render one frame and not the other, and then look at the two. There’s definitely a difference between them so the rendering is causing a shift. The footage is from a 5D MKIII so they are h264 files. I have the previews set to QT ProRes422. And I just tried the same test with some RAW footage that was converted to ProRes and got the same thing. Now it is slight, and seems to be less w the converted footage, but it’s there. I’ll convert some of the h264 to ProRes and do a comparison (so I’m looking at the same frames… original 5d h264 and the same frames converted to ProRes) and see what happens. And yes… I’m beginning to sound like a nut! lol

Lee

[Brian Johnson]

My issue was hyperthreading. My desktop is an i5 3570k but doesnt have hyperthreading. It was using 90%+ cpu usage almost nonstop while encoding. I have 2 core i7 laptops that were only using 19% CPU and taking 41 hours to render the same video my desktop was doing in 9 hours. I could not disable hyperthreading in the bios on the laptops. I have 2 friends that have 6 core intel CPUs with hyperthreading. I tried rendering on their desktops and had the same issue with cpu usage being below 20%. I then disabled hyperthreading and got the cpu usage to 80%+ nonstop. I was using Premiere Pro CC 2015 to do all of these tests. Before figuring out the issue I tried using CC 2017 as well as adobe media encoder and I still had the 19% cpu usage issue. Disabling hyperthreading fixed the problem for me.