Encoding is slow

Report · Jul 24, 2018

I posted this in another section of the forum but was told to re post it here in the hopes this may be a hardware problem. I've done Bill's PPBM8 test, the results are below.

PPBM8 Results: 56/45/14/185

I've just built a new system with speed in mind, specks are below. I'm trying to export a video out of Premiere, it's 4K video shot at 60 FPS that's being saved out to 1080P@59.94 FPS and the entire clip is about 1.2 minutes long. The clip is made up of two nested sequences, the first is a two layer comp, one layer is regular 4K video and the second layer is an animation sequence with an alpha channel, the second nested sequence is a linked after effects comp. I'm saving out the video using the H.264 format & the high quality 1080p preset, render at maximum depth is checked as well as use maximum render quality, all other settings are default. The time it's taking to encode this video is in excess of an hour and if my machine were maxed out I would be ok with that but it isn't. During the encoding process CPU usage never gets above 2% and sometimes sits at 0% for many seconds, it's the same for the GPU, memory usage is about 19GB out of 128GB. I'm at a loss to explain this and I can't see any way to speed up the process, I'd really appreciate some insight and help with this, is there no way to speed up encoding?

-Windows 10 Pro

-Xeon Gold 6146@3.20 Ghz x2

-128 GB Ram

-2 TB SSD

-Nvidia Quadro P6000

Report · Jul 24, 2018

What happens if you turn off Render at maximum bit depth?

Report · Jul 24, 2018

Nothing, it behaves the same way, CPU and GPU usage is unchanged.

Report · Jul 24, 2018

How about trying to use an export from AE instead of linking it?

Report · Jul 25, 2018

At this point it would take more time to do that than to just wait for Premiere to finish. I know encoding in Premiere isn't the fastest thing in the world but how can it be using less than 2% of available resources?

Report · Jul 25, 2018

Perhaps RjL190365 or Bill Gehrke could chime in here.

Report · Jul 25, 2018

I've made one change that has improved the export time, the first nested sequence was a composite of some background video and a rendered 3d element with an alpha channel. This 3d element was stored on our server not locally, it was about 40 GB and I suppose the network wasn't capable of delivering it fast enough even though it's gigabit. I moved the flies over to my C drive and the export time had dropped some, the CPU speed did improve a bit, it's up to 5% now but that's still way too slow in my opinion.

Report · Jul 25, 2018

All other files are locally stored on the computer?

Report · Jul 25, 2018

Yes

Report · Jul 26, 2018

https://forums.adobe.com/people/Peru+Bob wrote
Perhaps RjL190365 or https://forums.adobe.com/people/Bill+Gehrke could chime in here.

Have not seen Bill here for two months.

Have sent an email but no response. Hope he is alright.

Report · Jul 26, 2018

I don't know why but there is a definite problem when working with linked comps between premiere and after effects, it would be great if someone could confirm this.